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EP2280989B1 - Analogues de la cyclosporine et leur utilisation dans le traitement d'infections par le vhc - Google Patents

Analogues de la cyclosporine et leur utilisation dans le traitement d'infections par le vhc Download PDF

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Publication number
EP2280989B1
EP2280989B1 EP09773881.9A EP09773881A EP2280989B1 EP 2280989 B1 EP2280989 B1 EP 2280989B1 EP 09773881 A EP09773881 A EP 09773881A EP 2280989 B1 EP2280989 B1 EP 2280989B1
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Prior art keywords
group
carbon atoms
groups
optionally substituted
cyclosporine
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German (de)
English (en)
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EP2280989A2 (fr
Inventor
Keqiang Li
Ahmed Mamai
Michael Robert Peel
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Scynexis Inc
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Scynexis Inc
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K7/00—Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
    • C07K7/64—Cyclic peptides containing only normal peptide links
    • C07K7/645—Cyclosporins; Related peptides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
    • A61P1/16—Drugs for disorders of the alimentary tract or the digestive system for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12—Antivirals
    • A61P31/14—Antivirals for RNA viruses

Definitions

  • novel cyctosporine derivatives Disclosed herein are novel cyctosporine derivatives, compositions containing them, processes for their preparation, intermediates in their synthesis, and their use as therapeutics, for example, as antiviral agents.
  • HCV hepatitis C virus
  • HCV is an envelope RNA virus, wherein the genome is a single strand plus-strand RNA, and belongs to the genus Hepacivirus of Flavivirus (from The International Committee on Taxonomy of Viruses, International Union of Microbiological Societies).
  • Other hepaciviruses for example, hepatitis B virus (HBV), which is a DNA virus, is eliminated by the immune system, and the infection with this virus ends in an acute infection, with the exception of neonates and infants having yet immature immunological competence.
  • HCV somehow avoids the immune system of the host due to an unknown mechanism. Once infected with this virus, even an adult having a mature immune system frequently develops persistent infection.
  • an effective therapeutic method of treating or controlling hepatitis C is desired.
  • a therapeutic agent that reduces HCV to a low level free from inflammation and that eradicates HCV.
  • An optimal therapeutic agent would provide a virologic response classified as a "sustained virologic response," which is defined as undetectable levels of virus in blood six months or more after completing hepatitis C therapy.
  • interferon as a single agent or in combination with ribavirin, is the only effective method known for the eradication of HCV.
  • interferon can eradicate the virus in only about one-third of the patient population. For the rest of the patients, it has no effect or provides only a temporary effect. Therefore, there is a need for an anti-HCV drug to be used in the place of or concurrently with interferon.
  • Cyclosporine A is well known for its immunosuppressive activity and a range of therapeutic uses, including antifungal, anti-parasitic, and anti-inflammatory as well as anti-HIV activity. Cyclosporine A and certain derivatives have been reported as having anti-HCV activity, see Watashi et al., 2003, Hepatology 38:1282-1288 , Nakagawa et al., 2004, Biochem. Biophys. Res. Commun. 313:42-7 , and Shimotohno and K. Watashi, 2004, American Transplant Congress, Abstract No. 648 (American Journal of Transplantation 2004, Volume 4, Issue s8, Pages 1-653 ). Cyclosporine derivatives having HCV activity are known from International Publication Nos.
  • Cyclosporines in which the 5-Valine nitrogen is substituted by a non-hydrogen substituent are known from Papageorgiou et al, 1997, Bioorganic & Medicinal Chemistry,5(1):187-192 .
  • substituents A, B, R 1 and R 2 may contribute to optical and/or stereoisomerism. All such forms are embraced by the present invention.
  • alkali metals e.g., sodium, potassium or lithium
  • alkaline-earth metals e.g ., magnesium or calcium
  • Cyclosporine refers to any cyclosporine compound known to those of skill in the art, or a derivative thereof. See e.g., Ruegger et al., 1976, Helv. Chim. Acta. 59:1075-92 ; Borel et al., 1977, Immunology 32:1017-25 . Exemplary compounds disclosed herein are cyclosporine derivatives. Unless noted otherwise, a cyclosporine described herein is a cyclosporine A, and a cyclosporine derivative described herein is a derivative of cyclosporine A.
  • cyclosporine nomenclature and numbering systems used hereafter are those used by J. Kallen et al., "Cyclosporins: Recent Developments in Biosynthesis, Pharmacology and Biology, and Clinical Applications," Biotechnology, second edition, H.-J. Rehm and G.
  • Alkyl refers to monovalent saturated aliphatic hydrocarbyl groups particularly having up to about 11 carbon atoms, more particularly as a lower alkyl, from 1 to 8 carbon atoms and still more particularly, from I to 6 carbon atoms.
  • the hydrocarbon chain may be either straight-chained or branched. This term is exemplified by groups such as methyl, ethyl, n-propyl, isopropyl, n-butyl, iso-butyl, tert-butyl, n-hexyl, n-octyl, tert-octyl, and the like.
  • the term “lower alkyl” refers to alkyl groups having 1 to 6 carbon atoms.
  • Alkylene refers to divalent saturated aliphatic hydrocarbyl groups particularly having up to about 11 carbon atoms and more particularly 1 to 6 carbon atoms which can be straight-chained or branched. This term is exemplified by groups such as methylene (-CH 2 -), ethylene (-CH 2 CH 2 -), the propylene isomers ( e.g ., -CH 2 CH 2 CH 2 - and -CH(CH 3 )CH 2 -), and the like.
  • alkenyl refers to monovalent olefinically unsaturated hydrocarbyl groups preferably having up to about 11 carbon atoms, particularly, from 2 to 8 carbon atoms, and more particularly, from 2 to 6 carbon atoms, which can be straight-chained or branched and having at least 1 and particularly from 1 to 2 sites of olefinic unsaturation.
  • Alkynyl refers to acetylenically unsaturated hydrocarbyl groups particularly having up to about 11 carbon atoms and more particularly 2 to 6 carbon atoms which can be straight-chained or branched and having at least 1 and particularly from 1 to 2 sites of alkynyl unsaturation.
  • Alkoxy refers to the group -OR where R is alkyl. Particular alkoxy groups include, by way of example, methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, tert-butoxy, sec-butoxy, n-pentoxy, n-hexoxy, 1,2-dimethylbutoxy, and the like.
  • N-Alkylamino refers to the group alkyl-NR'-, wherein R' is selected from hydrogen and alkyl.
  • Amino refers to the radical -NH 2 .
  • Alkyl refers to alkyl substituted by aryl, where alkyl and aryl are as defined herein. Particular non-limiting aralkyl groups include benzyl (-CH 2 Ph), phenethyl (-CH 2 CH 2 Ph), and the like.
  • Aryl refers to an optionally substituted aromatic hydrocarbon radical, for example phenyl.
  • Arylamino refers to the group aryl-NR'-, wherein R' is selected from hydrogen, aryl and heteroaryl.
  • “Bmt” refers to 2(S)-amino-3(R)-hydroxy-4(R)- methyl-6(E)-octenoic acid.
  • N,N-Dialkylamino means a radical -NRR' where R and R' independently represent an alkyl, substituted alkyl, aryl, substituted aryl, cycloalkyl, substituted cycloalkyl, cycloheteroalkyl, substituted cycloheteroalkyl, heteroaryl, or substituted heteroaryl group as defined herein.
  • Halogen or halo refers to chloro, bromo, fluoro or iodo.
  • Heteroaryl refers to an optionally substituted saturated or unsaturated heterocyclic radical. Generally the heterocyclic ring contains from 4 to 7 ring atoms, e.g., 5 or 6 ring atoms. Examples of heteroaryl include thienyl, furyl, pyrrolyl, oxazinyl, thiazinyl, pyrazinyl, pyrimidinyl, pyridazinyl, thiazolyl, oxazolyl, imidazolyl, morpholinyl, pyrazolyl and tetrahydorfuryl.
  • Haldroxyl refers to the radical -OH.
  • Thioalkyl refers to the group -SR where R is alkyl. Examples include, but are not limited to, methylthio, ethylthio, propylthio, butylthio, and the like.
  • “Pharmaceutically acceptable salt” refers to any salt of a compound disclosed herein which retains its biological properties and which is not toxic or otherwise undesirable for pharmaceutical use. Such salts may be derived from a variety of organic and inorganic counter-ions well known in the art and include.
  • Such salts include: (1) acid addition salts formed with organic or inorganic acids such as hydrochloric, hydrobromic, sulfuric, nitric, phosphoric, sulfamic, acetic, trifluoroacetic, trichloroacetic, propionic, hexanoic, cyclopentylpropionic, glycolic, glutaric, pyruvic, lactic, malonic, succinic, sorbic, ascorbic, malic, maleic, fumaric, tartaric, citric, benzoic, 3-(4-hydroxybenzoyl)benzoic, picric, cinnamic, mandelic, phthalic, lauric, methanesulfonic, ethanesulfonic, 1,2-ethane-disulfonic, 2-hydroxyethanesulfonic, benzenesulfonic, 4-chlorobenzenesulfonic, 2-naphthalenesulfonic, 4-toluenesul
  • Salts further include, by way of example only, sodium, potassium, calcium, magnesium, ammonium, tetraalkylammonium, and the like, and when the compound contains a basic functionality, salts of non-toxic organic or inorganic acids, such as hydrohalides, e.g ., hydrochloride and hydrobromide, sulfate, phosphate, sulfamate, nitrate, acetate, trifluoroacetate, trichloroacetate, propionate, hexanoate, cyclopentylpropionate, glycolate, glutarate, pyruvate, lactate, malonate, succinate, sorbate, ascorbate, malate, maleate, fumarate, tartarate, citrate, benzoate, 3-(4-hydroxybenzoyl)benzoate, picrate, cinnamate, mandelate, phthalate, laurate, methanesulfonate (mesylate), ethanesulf
  • physiologically acceptable cation refers to a non-toxic, physiologically acceptable cationic counterion of an acidic functional group. Such cations are exemplified by sodium, potassium, calcium, magnesium, ammonium and tetraalkylammonium cations, and the like.
  • Solvate refers to a compound of the present invention, or a salt thereof, that further includes a stoichiometric or non-stoichiometric amount of solvent bound by noncovalent intermolecular forces. Where the solvent is water, the solvate is a hydrate.
  • enantiomers Stereoisomers that are not mirror images of one another are termed “diastereomers” and those that are non-superimposable mirror images of each other are termed “enantiomers”.
  • a compound has an asymmetric center, for example, when it is bonded to four different groups, a pair of enantiomers is possible.
  • An enantiomer can be characterized by the absolute configuration of its asymmetric center and is designated (R) or (S) according to the rules of Cahn and Prelog ( Cahn et al., 1966, Angew. Chem. 78:413-447 , Angew. Chem., Int. Ed. Engl. 5:385-414 (errata: Angew. Chem., Int. Ed.
  • the compounds disclosed herein may possess one or more asymmetric centers; such compounds can therefore be produced as the individual ( R )- or ( S )-enantiomer or as a mixture thereof.
  • the description or naming of a particular compound in the specification and claims is intended to include both individual enantiomers and mixtures, racemic or otherwise, thereof.
  • Methods for determination of stereochemistry and separation of stereoisomers are well-known in the art.
  • the present invention provides stereoisomers of the compounds disclosed herein, upon treatment with base.
  • the compounds of the invention are "stereochemically pure".
  • "stereochemically pure” designates a compound that is substantially free of alternate isomers.
  • the compound is 85%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, 99.5% or 99.9% free of other isomers.
  • the terms “subject” and “patient” are used interchangeably herein.
  • the terms “subject” and “subjects” refer to an animal, preferably a mammal including a non-primate (e.g., a cow, pig, horse, cat, dog, rat, and mouse) and a primate (e.g., a monkey such as a cynomolgous monkey, a chimpanzee and a human), and more preferably a human.
  • the subject is a farm animal (e.g ., a horse, a cow, a pig, etc.) or a pet ( e.g., a dog or a cat).
  • the subject is a human.
  • a therapeutic agent refers to any agent(s) which can be used in the treatment, management, or amelioration of a disorder or one or more symptoms thereof.
  • the term “therapeutic agent” refers to a compound disclosed herein.
  • the term “therapeutic agent” refers does not refer to a compound of disclosed herein.
  • a therapeutic agent is an agent that is known to be useful for, or has been or is currently being used for the treatment, management, prevention, or amelioration of a disorder or one or more symptoms thereof.
  • “Therapeutically effective amount” means an amount of a compound or complex or composition that, when administered to a subject for treating a disease, is sufficient to effect such treatment for the disease.
  • a “therapeutically effective amount” can vary depending on, inter alia, the compound, the disease and its severity, and the age, weight, etc ., of the subject to be treated.
  • Treating” or “treatment” of any disease or disorder refers, in one embodiment, to ameliorating a disease or disorder that exists in a subject. In another embodiment, “treating” or “treatment” refers to ameliorating at least one physical parameter, which may be indiscernible by the subject. In yet another embodiment, “treating” or “treatment” refers to modulating the disease or disorder, either physically ( e.g., stabilization of a discernible symptom) or physiologically (e.g., stabilization of a physical parameter) or both. In yet another embodiment, “treating” or “treatment” refers to delaying the onset of the disease or disorder.
  • prophylactic agent and “prophylactic agents” as used refer to any agent(s) which can be used in the prevention of a disorder or one or more symptoms thereof.
  • the term “prophylactic agent” refers to a compound disclosed herein.
  • the term “prophylactic agent” does not refer a compound of the invention.
  • a prophylactic agent is an agent which is known to be useful for, or has been or is currently being used to prevent or impede the onset, development, progression and/or severity of a disorder.
  • the terms “prevent”, “preventing” and “prevention” refer to the prevention of the recurrence, onset, or development of one or more symptoms of a disorder in a subject resulting from the administration of a therapy (e.g ., a prophylactic or therapeutic agent), or the administration of a combination of therapies (e.g ., a combination of prophylactic or therapeutic agents).
  • a therapy e.g ., a prophylactic or therapeutic agent
  • a combination of therapies e.g ., a combination of prophylactic or therapeutic agents
  • prophylactically effective amount refers to the amount of a therapy (e.g. , prophylactic agent) which is sufficient to result in the prevention of the development, recurrence or onset of one or more symptoms associated with a disorder, or to enhance or improve the prophylactic effect(s) of another therapy (e.g ., another prophylactic agent).
  • a therapy e.g. , prophylactic agent
  • another therapy e.g., another prophylactic agent
  • label refers to a display of written, printed or graphic matter upon the immediate container of an article, for example the written material displayed on a vial containing a pharmaceutically active agent.
  • labeling refers to all labels and other written, printed or graphic matter upon any article or any of its containers or wrappers or accompanying such article, for example, a package insert or instructional videotapes or DVDs accompanying or associated with a container of a pharmaceutically active agent.
  • A represents -CH 2 CH 2 R.
  • R represents methyl
  • B represents methyl, ethyl, 1-hydroxyethyl, isopropyl or n-propyl. In one embodiment, B represents ethyl, 1-hydroxyethyl, isopropyl or n-propyl. In another embodiment, B represents ethyl.
  • R 1 represents straight- or branched- chain alkyl containing from one to six carbon atoms, optionally substituted by one or more groups R 3 which may be the same or different. In another embodiment, R 1 represents straight- or branched- chain alkyl containing from one to four carbon atoms, optionally substituted by one or two groups R 3 which may be the same or different. In a further embodiment, R 1 represents straight chain alkyl containing from one to three carbon atoms, optionally substituted by one or two groups R 3 which may be the same or different. In a still further embodiment, R 1 represents alkyl, optionally substituted by one or two groups R 3 .
  • R 1 represents straight chain alkyl containing one to three carbon atoms, optionally substituted by one or two groups R 3 . In a still further embodiment, R 1 represents straight chain alkyl containing one to three carbon atoms, optionally substituted by a group R 3 .
  • X represents oxygen or sulfur.
  • X represents oxygen.
  • X represents sulfur.
  • R 2 represents straight- or branched- chain alkyl containing from one to six carbon atoms, substituted by one or more groups R 41 which may be the same or different.
  • R 2 represents straight-or branched- chain alkyl containing from one to six carbon atoms, substituted by a group R 41 .
  • R 2 represents straight chain alkyl containing from one to four carbon atoms substituted by a group R 41 .
  • R 2 represents methyl substituted by a group R 41 .
  • R 2 represents straight- or branched- chain alkenyl containing from three to six carbon atoms optionally substituted by a group R 42 . In another embodiment, R 2 represents straight- or branched-chain alkenyl containing from three to six carbon atoms substituted by a group R 42 . In a further embodiment, R 2 represents straight- or branched- chain alkenyl containing from three to five carbon atoms optionally substituted by a group R 42 . In a further embodiment, R 2 represents straight chain alkenyl containing from three to five carbon atoms substituted by a group R 42 . In a still further embodiment, R 2 represents but-2-enyl substituted by a group R 42 .
  • R 2 represents trans but-2-enyl substituted by a group R 42 .
  • R 3 represents amino, N-alkylamino, N,N-dialkylamino or cycloalkyl. In another embodiment, R 3 represents N,N-dimethylaminoethyl, N,N-diethylaminoethyl, N-methyl-N-tert-butylaminoethyl, N-ethyl-N-tert-butylaminoethyl, or cyclobutyl. In a further embodiment, R 3 represents N,N-dimethylamino or cyclobutyl.
  • R 41 represents halogen, hydroxyl, alkoxy, carboxyl, alkoxycarbonyl, -NR 5 R 6 , -NR 7 (CH 2 ) m NR 5 R 6 ; or phenyl optionally substituted by from one to five groups which may be the same or different selected from the group consisting of alkyl, haloalkyl, halogen, hydroxyl, alkoxy, amino, N-alkylamino, N,N-dialkylamino, carboxyl and alkoxycarbonyl; or R 41 is a carbon-linked saturated or unsaturated heterocyclic ring containing from four to six ring atoms, which ring contains one or two heteroatoms which may the same or different selected from the group consisting of nitrogen, oxygen and sulfur, which ring may be optionally substituted by from one to four groups which may be the same or different selected from the group consisting of alkyl, halogen, alkoxy, amino, carboxyl and alkyl, which alkyl is
  • R 41 represents phenyl optionally substituted by from one to five groups which may be the same or different selected from the group consisting of alkyl, haloalkyl, halogen, hydroxyl, amino, N-alkylamino, N,N-dialkylamino, carboxyl and alkoxycarbonyl.
  • R 41 represents phenyl optionally substituted by a group selected from the group consisting of alkyl, haloalkyl, halogen and alkoxy.
  • R 41 represents phenyl optionally substituted by a group selected from the group consisting of alkyl and haloalkyl.
  • R 41 represents -NR 5 R 6 , wherein R 5 and R 6 which may be the same or different, each represent alkyl.
  • R 41 represents hydroxyl, -NR 5 R 6 or -OR 8 .
  • R 41 represents hydroxyl, -NR 5 R 6 , -OR 8 or phenyl optionally substituted by from one to five groups which may be the same or different selected from the group consisting of alkyl, haloalkyl, halogen, hydroxyl, alkoxy, amino, N-alkylamino, N,N-dialkylamino, carboxyl and alkoxycarbonyl; or cycloalkyl containing from three to six carbon atoms optionally substituted by one or more groups which may be the same or different selected from the group consisting of halogen, hydroxyl, amino, N-monoalkylamino and N,N-dialkylamino.
  • R 5 and R 6 which may be the same or different, each represent hydrogen; or straight- or branched- chain alkyl containing from one to six carbon atoms; or R 5 and R 6 , together with the nitrogen atom to which they are attached, form a saturated or unsaturated heterocyclic ring containing from four to six ring atoms, which ring may optionally contain another heteroatom selected from the group consisting of nitrogen, oxygen and sulfur, which ring may be optionally substituted by from one to four groups which may be the same or different selected from the group consisting of alkyl, phenyl and benzyl.
  • R 5 and R 6 which may be the same or different, each represent straight- or branched- chain alkyl containing from one to six carbon atoms.
  • R 5 and R 6 each represent methyl.
  • R 8 represents aryl optionally substituted by one or two groups which may be the same or different selected from the group consisting of alkyl, haloalkyl, halogen, hydroxyl, alkoxy, amino, N-alkylamino and N,N-dialkylamino; or R 8 represents aralkyl, wherein the aryl ring is optionally substituted by from one or two groups which may be the same or different selected from the group consisting of halogen, amino, N-alkylamino, N,N-dialkylamino, alkoxy and haloalkyl, wherein the alkyl of aralkyl contains one or two carbon atoms.
  • R 8 represents benzyl, wherein the phenyl ring is optionally substituted by one or two groups which may be the same or different selected from the group consisting of alkyl, haloalkyl, halogen, hydroxyl and alkoxy. In a further embodiment, R 8 represents benzyl, wherein the phenyl ring is optionally substituted by one or two alkoxy groups which may be the same or different.
  • Particularly preferred compounds of the invention include the following:
  • compounds of formula (I) may be prepared by the treatment of a compound of formula (II): wherein A, B, X and R 1 are as defined above, with a base, followed by reaction of the resulting anionic compound with a compounds of formula R 2 -Y, wherein R 2 is as defined above and Y is a leaving group such as halogen, for example bromide, chloride, iodide; or sulfonate ester such as mesylate, toluenesulfonate or trifluoromethanesulfonate.
  • the compound of formula (II) is dissolved in an appropriate solvent and cooled to about -70°C.
  • the base is added followed by the electrophile of formula R 2 -Y and the reaction mixture is allowed to warm to about room temperature.
  • Preferred solvents include tetrahydrofuran, diethyl ether, dimethoxyethane, dioxane, and the like.
  • Suitable bases for the reaction include, but are not limited to, phosphazine bases, sodium hydride, potassium tert-butoxide, lithium diisopropylamide, and the like.
  • Particularly preferred bases include the phosphazine type bases, known in the art as non-nucleophilic bases, such as tert-butyl-4,4,4-tris(dimethylamino)-2,2-bis(tris(dimethylamino)-phosphoranylidenamino)-2 5 ,4 5 -catenadi(phosphazene) (P 4 -t-Butyl), and the like.
  • Suitable electrophiles known to react with anionic nitrogen groups include alkyl halides or sulfonates; benzylic halides or sulfonates; heteroarylalkyl halides or sulfonates; allylic halides or sulfonates.
  • Preferred compounds of formula R 1 -Y include alkyl halides that are further substituted with ether, thioether and ester groups, for example chloromethyl methylether, chloromethyl methylsulfide and tert-butyl bromoacetate.
  • compounds of formula (I) may be prepared by the treatment of a compound of formula (III): wherein A, B and R 2 are as defined above, with a base in an appropriate solvent to generate a polyanionic species, followed by the reaction of the polyanion thus obtained with a electrophile of formula R 1 X-L, wherein R 1 and X are as defined above and L is a leaving group.
  • the compound of formula (III) is dissolved in an appropriate solvent and cooled to about -70°C.
  • Solvents include tetrahydrofuran, dimethyoxymethane, methyl tert-butylether, dioxane, and the like.
  • the resulting mixture is generally allowed to react for about 1 hour and is optionally allowed to warm to about -20°C.
  • the reaction mixture is typically cooled to about -70°C and an appropriate electrophile is added.
  • Preferred bases for this reaction include n-butyllithium, lithium diisopropylamide, lithium diisopropylamide in combination with lithium chloride and sodium amide.
  • Suitable electrophiles include, but are not limited to activated alkyl and alkenyl halides or sulfonates, disulfides, thiosulfonates, trialkylsilyl halides or sulfonates, and the like.
  • Compounds of formula (II) may be prepared by the treatment of a compound of formula (IV): wherein A and B are as defined above, with a base followed by reaction of the resulting anionic compound with a compounds of formula R 1 X-Y, wherein R 1 and X are as defined above and Y is a leaving group such as halogen, for example bromide, chloride, iodide; or a sulfonate ester such as mesylate, toluenesulfonate or trifluoromethanesulfonate.
  • the compound of formula (IV) is dissolved in an appropriate solvent and cooled to about -70°C.
  • the base is added followed by the electrophile of formula R 1 Y and the reaction mixture is allowed to warm to about room temperature.
  • Preferred solvents include tetrahydrofuran, diethyl ether, dimethoxyethane, dioxane, and the like.
  • Suitable bases for the reaction include, but are not limited to, phosphazine bases, sodium hydride, potassium tert-butoxide, lithium diisopropylamide, and the like.
  • Particularly preferred bases include the phosphazine type bases, known in the art as non-nucleophilic bases, such as tert-butyl-4,4,4-tris(dimethylamino)-2,2-bis(tris(dimethylamino)-phosphoranylidenamino)-2 5 ,4 5 -catenadi(phosphazene) (P 4 -t-Butyl), and the like.
  • Suitable electrophiles known to react with anionic nitrogen groups include alkyl halides or sulfonates; benzylic halides or sulfonates; heteroarylalkyl halides or sulfonates; allylic halides or sulfonates.
  • Preferred compounds of formula R 1 -Y include alkyl halides that are further substituted with ether, thioether and ester groups, for example chloromethyl methylether, chloromethyl methylsulfide and tert-butyl bromoacetate.
  • compounds of formula (I) can be prepared by deprotecting a compound of formula (V): wherein A, B, X, R 1 and R 2 are as defined above and R 50 represents a protecting group.
  • R 50 include trialkylsilyl such as tert-butyldimethylsiloxy, triethylsilyloxy, tert-butyldiphenylsilyloxy and trimethylsilyloxy.
  • the reaction is generally carried out using a fluoride source (e . g ., tetrabutylammonium fluoride, hydrogen fluoride/pyridine, cesium fluoride) in an aprotic solvent (e.g. , THF) at a temperature of from about -20 to about 50°C.
  • aprotic solvent e.g. , THF
  • Compounds of formula (V) may be prepared by the treatment of a compound of formula (VI): wherein A, B, X, R 1 and R 50 are as defined above, with a base, followed by reaction of the resulting anionic compound with a compound of formula R 2 -Y, wherein R 2 is as defined above and Y.
  • the reaction conditions are generally as described above for the preparation of compounds of formula (I) from compounds of formula (II).
  • Compounds of formula (VI) are known the literature or can be prepared by the application or adaptation of known methods.
  • Compounds of formula (V) or (VI) may be prepared by treating the corresponding compound of formula (I) or (II) with a reagent known to effect such a protection in an appropriate solvent optionally in the presence of a base.
  • a reagent is a trialkylsilyl derivative, an activated carboxylic acid or an isocyanate
  • the base is a trialkylamine or an alkaline earth carbonate
  • the solvent is dichloromethane, dichloroethane, diethyl ether, THF and the like.
  • the reagent is tert-butyldimethylsilyl trifluoroacetate
  • the base is triethylamine and the reaction is carried out in dichloroethane.
  • Compounds of formula (I) or (V) in which R 2 represents alkenyl substituted by hydroxyl can be converted into the corresponding alkyl derivative by a sequence that involves oxidation of the hydroxyl to give a 1,4-unsaturated carbonyl derivative; followed by selective reduction of the alkenyl group and reduction of the carbonyl to give a hydroxyl compound.
  • Selective reduction of the alkenyl group can be effected by reagents known to cause 1,4 reductions including copper hydrides, lithium/ammonia, sodium hydroxide/iron pentacarbonyl, sodium borohydride/nickel chloride, sodium borohydride/copper sulphate, and the like.
  • the compounds disclosed herein may be in a neutral form, or in a salt form.
  • an acid addition salt can be formed.
  • the acid which can be used to prepare an acid addition salt includes preferably that which produces, when combined with the free base, a pharmaceutically acceptable salt, that is, a salt whose anion is non-toxic to a subject in the pharmaceutical doses of the salt.
  • salts within the scope of the invention are those derived from the following acids: mineral acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid, sulfamic acid and nitric acid; and organic acids such as acetic, trifluoroacetic, trichloroacetic, propionic, hexanoic, cyclopentylpropionic, glycolic, glutaric, pyruvic, lactic, malonic, succinic, sorbic, ascorbic, malic, maleic, fumaric, tartaric, citric, benzoic, 3-(4-hydroxybenzoyl)benzoic, picric, cinnamic, mandelic, phthalic, lauric, methanesulfonic, ethanesulfonic, 1,2-ethane-disulfonic, 2-hydroxyethanesulfonic, benzenesulfonic, 4-chlorobenzenesulfonic, 2-naphthalen, 2-
  • the corresponding acid addition salts include hydrohalides, e . g ., hydrochloride and hydrobromide, sulfate, phosphate, sulfamate, nitrate, acetate, trifluoroacetate, trichloroacetate, propionate, hexanoate, cyclopentylpropionate, glycolate, glutarate, pyruvate, lactate, malonate, succinate, sorbate, ascorbate, malate, maleate, fumarate, tartarate, citrate, benzoate, 3-(4-hydroxybenzoyl)benzoate, picrate, cinnamate, mandelate, phthalate, laurate, methanesulfonate (mesylate), ethanesulfonate, 1,2-ethane-disulfonate, 2-hydroxyethanesulfonate, benzenesulfonate (besylate), 4-chlorobenzenesulfon
  • acid addition salts of the compounds of this invention can be prepared by reaction of the free base with the appropriate acid, by the application or adaptation of known methods.
  • the acid addition salts of the compounds of this invention can be prepared either by dissolving the free base in aqueous or aqueous-alcohol solution or other suitable solvents containing the appropriate acid and isolating the salt by evaporating the solution, or by reacting the free base and acid in an organic solvent, in which case the salt separates directly or can be obtained by concentration of the solution.
  • the acid addition salts of the compounds of this invention can be regenerated from the salts by the application or adaptation of known methods.
  • parent compounds disclosed herein can be regenerated from their acid addition salts by treatment with an alkali, e . g ., aqueous sodium bicarbonate solution or aqueous ammonia solution.
  • base addition salts can be formed.
  • Pharmaceutically acceptable salts including for example alkali and alkaline earth metal salts, within the scope of the invention are those derived from the following bases: sodium hydride, sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, aluminum hydroxide, lithium hydroxide, zinc hydroxide, barium hydroxide, and organic amines such as aliphatic, alicyclic, or aromatic organic amines, such as ammonia, methylamine, dimethylamine, diethylamine, picoline, ethanolamine, diethanolamine, triethanolamine, ethylenediamine, lysine, arginine, ornithine, choline, N,N'-dibenzylethylene-diamine, chloroprocaine, diethanolamine, procaine, N-benzylphenethylamine, N -methyl
  • Metal salts of compounds of the present invention can be obtained by contacting a hydride, hydroxide, carbonate or similar reactive compound of the chosen metal in an aqueous or organic solvent with the free acid form of the compound.
  • the aqueous solvent employed may be water or it may be a mixture of water with an organic solvent, preferably an alcohol such as methanol or ethanol, a ketone such as acetone, an aliphatic ether such as tetrahydrofuran, or an ester such as ethyl acetate.
  • Such reactions are normally conducted at ambient temperature but they may, if desired, be conducted with heating.
  • Amine salts of compounds of the present invention can be obtained by contacting an amine in an aqueous or organic solvent with the free acid form of the compound.
  • Suitable aqueous solvents include water and mixtures of water with alcohols such as methanol or ethanol, ethers such as tetrahydrofuran, nitriles, such as acetonitrile, or ketones such as acetone.
  • Amino acid salts may be similarly prepared.
  • the base addition salts of the compounds of this invention can be regenerated from the salts by the application or adaptation of known methods.
  • parent compounds disclosed herein can be regenerated from their base addition salts by treatment with an acid, e.g. , hydrochloric acid.
  • the cyclosporine compounds used in the method of the present invention are preferably provided using pharmaceutical compositions containing at least one compound of general formula (I), if appropriate in the salt form, either used alone or in the form of a combination with one or more compatible and pharmaceutically acceptable carriers, such as diluents or adjuvants, or with another therapeutic (e . g ., anti-HCV) agent.
  • the cyclosporine compounds of the present invention may be administered by any conventional route, in particular orally, parenterally, rectally or by inhalation ( e . g ., in the form of aerosols).
  • the cyclosporine compounds of the present invention are preferably administered orally.
  • compositions for oral administration of tablets, pills, hard gelatin capsules, powders or granules.
  • the active product according to the invention is mixed with one or more inert diluents or adjuvants, such as sucrose, lactose or starch.
  • compositions can comprise substances other than diluents, for example a lubricant, such as magnesium stearate, or a coating intended for controlled release
  • compositions for oral administration of solutions which are pharmaceutically acceptable, suspensions, emulsions, syrups and elixirs containing inert diluents, such as water or liquid paraffin.
  • solutions which are pharmaceutically acceptable, suspensions, emulsions, syrups and elixirs containing inert diluents, such as water or liquid paraffin.
  • inert diluents such as water or liquid paraffin.
  • These compositions can also comprise substances other than diluents, for example wetting, sweetening or flavoring products.
  • compositions for parenteral administration can be emulsions or sterile solutions. Use may be made, as solvent or vehicle, of propylene glycol, a polyethylene glycol, vegetable oils, in particular olive oil, or injectable organic esters, for example ethyl oleate. These compositions can also contain adjuvants, in particular wetting, isotonizing, emulsifying, dispersing and stabilizing agents. Sterilization can be carried out in several ways, for example using a bacteriological filter, by radiation or by heating. They can also be prepared in the form of sterile solid compositions which can be dissolved at the time of use in sterile water or any other injectable sterile medium.
  • compositions for rectal administration are suppositories or rectal capsules which contain, in addition to the active principle, excipients such as cocoa butter, semisynthetic glycerides or polyethylene glycols.
  • compositions can also be aerosols.
  • the compositions can be stable sterile solutions or solid compositions dissolved at the time of use in apyrogenic sterile water, in saline or any other pharmaceutically acceptable vehicle.
  • the active principle is finely divided and combined with a water-soluble solid diluent or vehicle, for example dextran, mannitol or lactose.
  • composition of the invention is a pharmaceutical composition or a single unit dosage form.
  • Pharmaceutical compositions and single unit dosage forms of the invention comprise a prophylactically or therapeutically effective amount of one or more prophylactic or therapeutic agents (e.g., a compound of the invention, or other prophylactic or therapeutic agent), and a typically one or more pharmaceutically acceptable carriers or excipients.
  • prophylactic or therapeutic agents e.g., a compound of the invention, or other prophylactic or therapeutic agent
  • carriers or excipients typically one or more pharmaceutically acceptable carriers or excipients.
  • pharmaceutically acceptable means approved by a regulatory agency of the Federal or a state government or listed in the U.S. Pharmacopeia or other generally recognized pharmacopeia for use in animals, and more particularly in humans.
  • carrier refers to a diluent, adjuvant ( e .
  • Such pharmaceutical carriers can be sterile liquids, such as water and oils, including those of petroleum, animal, vegetable or synthetic origin, such as peanut oil, soybean oil, mineral oil, sesame oil, and the like. Water is a preferred carrier when the pharmaceutical composition is administered intravenously. Saline solutions and aqueous dextrose and glycerol solutions can also be employed as liquid carriers, particularly for injectable solutions. Examples of suitable pharmaceutical carriers are described in "Remington's Pharmaceutical Sciences" by E.W. Martin.
  • Typical pharmaceutical compositions and dosage forms comprise one or more excipients.
  • Suitable excipients are well-known to those skilled in the art of pharmacy, and non limiting examples of suitable excipients include starch, glucose, lactose, sucrose, gelatin, malt, rice, flour, chalk, silica gel, sodium stearate, glycerol monostearate, talc, sodium chloride, dried skim milk, glycerol, propylene, glycol, water, ethanol, and the like.
  • composition or dosage form Whether a particular excipient is suitable for incorporation into a pharmaceutical composition or dosage form depends on a variety of factors well known in the art including, but not limited to, the way in which the dosage form will be administered to a subject and the specific active ingredients in the dosage form.
  • the composition or single unit dosage form if desired, can also contain minor amounts of wetting or emulsifying agents, or pH buffering agents.
  • Lactose free compositions of the invention can comprise excipients that are well known in the art and are listed, for example, in the U.S. Pharmocopia (USP) SP (XXI)/NF (XVI).
  • USP U.S. Pharmocopia
  • XXI U.S. Pharmocopia
  • NF NF
  • lactose free compositions comprise an active ingredient, a binder/filler, and a lubricant in pharmaceutically compatible and pharmaceutically acceptable amounts.
  • Exemplary lactose free dosage forms comprise an active ingredient, microcrystalline cellulose, pre gelatinized starch, and magnesium stearate.
  • This invention further encompasses anhydrous pharmaceutical compositions and dosage forms comprising active ingredients, since water can facilitate the degradation of some compounds.
  • water e.g., 5%
  • water is widely accepted in the pharmaceutical arts as a means of simulating long term storage in order to determine characteristics such as shelf life or the stability of formulations over time. See, e.g., Jens T. Carstensen, Drug Stability: Principles & Practice, 2d. Ed., Marcel Dekker, NY, NY, 1995, pp. 379-80 .
  • water and heat accelerate the decomposition of some compounds.
  • the effect of water on a formulation can be of great significance since moisture and/or humidity are commonly encountered during manufacture, handling, packaging, storage, shipment, and use of formulations.
  • Anhydrous pharmaceutical compositions and dosage forms of the invention can be prepared using anhydrous or low moisture containing ingredients and low moisture or low humidity conditions.
  • Pharmaceutical compositions and dosage forms that comprise lactose and at least one active ingredient that comprises a primary or secondary amine are preferably anhydrous if substantial contact with moisture and/or humidity during manufacturing, packaging, and/or storage is expected.
  • anhydrous pharmaceutical composition should be prepared and stored such that its anhydrous nature is maintained. Accordingly, anhydrous compositions are preferably packaged using materials known to prevent exposure to water such that they can be included in suitable formulary kits. Examples of suitable packaging include, but are not limited to, hermetically sealed foils, plastics, unit dose containers ( e . g ., vials), blister packs, and strip packs.
  • compositions and dosage forms that comprise one or more compounds that reduce the rate by which an active ingredient will decompose.
  • compounds which are referred to herein as “stabilizers,” include, but are not limited to, antioxidants such as ascorbic acid, pH buffers, or salt buffers.
  • compositions and single unit dosage forms can take the form of solutions, suspensions, emulsion, tablets, pills, capsules, powders, sustained-release formulations, and the like.
  • Oral formulation can include standard carriers such as pharmaceutical grades of mannitol, lactose, starch, magnesium stearate, sodium saccharine, cellulose, magnesium carbonate, etc.
  • Such compositions and dosage forms will contain a prophylactically or therapeutically effective amount of a prophylactic or therapeutic agent preferably in purified form, together with a suitable amount of carrier so as to provide the form for proper administration to the subject.
  • the formulation should suit the mode of administration.
  • the pharmaceutical compositions or single unit dosage forms are sterile and in suitable form for administration to a subject, preferably an animal subject, more preferably a mammalian subject, and most preferably a human subject.
  • a pharmaceutical composition of the invention is formulated to be compatible with its intended route of administration.
  • routes of administration include, but are not limited to, parenteral, e.g. , intravenous, intradermal, subcutaneous, intramuscular, subcutaneous, oral, buccal, sublingual, inhalation, intranasal, transdermal, topical, transmucosal, intra-tumoral, intra-synovial and rectal administration.
  • the composition is formulated in accordance with routine procedures as a pharmaceutical composition adapted for intravenous, subcutaneous, intramuscular, oral, intranasal or topical administration to human beings.
  • a pharmaceutical composition is formulated in accordance with routine procedures for subcutaneous administration to human beings.
  • compositions for intravenous administration are solutions in sterile isotonic aqueous buffer.
  • the composition may also include a solubilizing agent and a local anesthetic such as lignocaine to ease pain at the site of the injection.
  • dosage forms include, but are not limited to: tablets; caplets; capsules, such as soft elastic gelatin capsules; cachets; troches; lozenges; dispersions; suppositories; ointments; cataplasms (poultices); pastes; powders; dressings; creams; plasters; solutions; patches; aerosols (e.g., nasal sprays or inhalers); gels; liquid dosage forms suitable for oral or mucosal administration to a subject, including suspensions ( e.g., aqueous or non aqueous liquid suspensions, oil in water emulsions, or a water in oil liquid emulsions), solutions, and elixirs; liquid dosage forms suitable for parenteral administration to a subject; and sterile solids (e .g., crystalline or amorphous solids) that can be reconstituted to provide liquid dosage forms suitable for parenteral administration to a subject.
  • suspensions e.g., aqueous or non
  • composition, shape, and type of dosage forms of the invention will typically vary depending on their use.
  • a dosage form used in the initial treatment of viral infection may contain larger amounts of one or more of the active ingredients it comprises than a dosage form used in the maintenance treatment of the same infection.
  • a parenteral dosage form may contain smaller amounts of one or more of the active ingredients it comprises than an oral dosage form used to treat the same disease or disorder.
  • compositions of the invention are supplied either separately or mixed together in unit dosage form, for example, as a dry lyophilized powder or water free concentrate in a hermetically sealed container such as an ampoule or sachette indicating the quantity of active agent.
  • a hermetically sealed container such as an ampoule or sachette indicating the quantity of active agent.
  • the composition is to be administered by infusion, it can be dispensed with an infusion bottle containing sterile pharmaceutical grade water or saline.
  • an ampoule of sterile water for injection or saline can be provided so that the ingredients may be mixed prior to administration.
  • Typical dosage forms of the invention comprise a compound of the invention, or a pharmaceutically acceptable salt, solvate or hydrate thereof lie within the range of from about 0.1 mg to about 1000 mg per day, given as a single once-a-day dose in the morning but preferably as divided doses throughout the day taken with food.
  • Particular dosage forms of the invention have about 0.1, 0.2, 0.3, 0.4, 0.5, 1.0, 2.0, 2.5, 5.0, 10.0, 15.0, 20.0, 25.0, 50.0, 100, 200, 250, 500 or 1000 mg of the active cyclosporine.
  • compositions of the invention that are suitable for oral administration can be presented as discrete dosage forms, such as, but are not limited to, tablets (e.g., chewable tablets), caplets, capsules, and liquids (e.g., flavored syrups).
  • dosage forms contain predetermined amounts of active ingredients, and may be prepared by methods of pharmacy well known to those skilled in the art. See generally, Remington's Pharmaceutical Sciences, 18th ed., Mack Publishing, Easton PA (1990 ).
  • the oral dosage forms are solid and prepared under anhydrous conditions with anhydrous ingredients, as described in detail in the sections above.
  • anhydrous, solid oral dosage forms As such, further forms are described herein.
  • Typical oral dosage forms of the invention are prepared by combining the active ingredient(s) in an intimate admixture with at least one excipient according to conventional pharmaceutical compounding techniques.
  • Excipients can take a wide variety of forms depending on the form of preparation desired for administration.
  • excipients suitable for use in oral liquid or aerosol dosage forms include, but are not limited to, water, glycols, oils, alcohols, flavoring agents, preservatives, and coloring agents.
  • excipients suitable for use in solid oral dosage forms include, but are not limited to, starches, sugars, micro crystalline cellulose, diluents, granulating agents, lubricants, binders, and disintegrating agents.
  • tablets and capsules represent the most advantageous oral dosage unit forms, in which case solid excipients are employed. If desired, tablets can be coated by standard aqueous or nonaqueous techniques. Such dosage forms can be prepared by any of the methods of pharmacy. In general, pharmaceutical compositions and dosage forms are prepared by uniformly and intimately admixing the active ingredients with liquid carriers, finely divided solid carriers, or both, and then shaping the product into the desired presentation if necessary.
  • a tablet can be prepared by compression or molding.
  • Compressed tablets can be prepared by compressing in a suitable machine the active ingredients in a free flowing form such as powder or granules, optionally mixed with an excipient.
  • Molded tablets can be made by molding in a suitable machine a mixture of the powdered compound moistened with an inert liquid diluent.
  • excipients that can be used in oral dosage forms of the invention include, but are not limited to, binders, fillers, disintegrants, and lubricants.
  • Binders suitable for use in pharmaceutical compositions and dosage forms include, but are not limited to, corn starch, potato starch, or other starches, gelatin, natural and synthetic gums such as acacia, sodium alginate, alginic acid, other alginates, powdered tragacanth, guar gum, cellulose and its derivatives ( e.g ., ethyl cellulose, cellulose acetate, carboxymethyl cellulose calcium, sodium carboxymethyl cellulose), polyvinyl pyrrolidone, methyl cellulose, pre gelatinized starch, hydroxypropyl methyl cellulose, ( e.g ., Nos. 2208, 2906, 2910), microcrystalline cellulose, and mixtures thereof.
  • fillers suitable for use in the pharmaceutical compositions and dosage forms disclosed herein include, but are not limited to, talc, calcium carbonate (e.g., granules or powder), microcrystalline cellulose, powdered cellulose, dextrates, kaolin, mannitol, silicic acid, sorbitol, starch, pre gelatinized starch, and mixtures thereof.
  • the binder or filler in pharmaceutical compositions of the invention is typically present in from about 50 to about 99 weight percent of the pharmaceutical composition or dosage form.
  • Suitable forms of microcrystalline cellulose include, but are not limited to, the materials sold as AVICEL PH 101, AVICEL PH 103 AVICEL RC 581, AVICEL PH 105 (available from FMC Corporation, American Viscose Division, Avicel Sales, Marcus Hook, PA), and mixtures thereof.
  • An specific binder is a mixture of microcrystalline cellulose and sodium carboxymethyl cellulose sold as AVICEL RC 581.
  • Suitable anhydrous or low moisture excipients or additives include AVICEL PH 103TM and Starch 1500 LM.
  • Disintegrants are used in the compositions of the invention to provide tablets that disintegrate when exposed to an aqueous environment. Tablets that contain too much disintegrant may disintegrate in storage, while those that contain too little may not disintegrate at a desired rate or under the desired conditions. Thus, a sufficient amount of disintegrant that is neither too much nor too little to detrimentally alter the release of the active ingredients should be used to form solid oral dosage forms of the invention.
  • the amount of disintegrant used varies based upon the type of formulation, and is readily discernible to those of ordinary skill in the art.
  • Typical pharmaceutical compositions comprise from about 0.5 to about 15 weight percent of disintegrant, specifically from about 1 to about 5 weight percent of disintegrant.
  • Disintegrants that can be used in pharmaceutical compositions and dosage forms of the invention include, but are not limited to, agar agar, alginic acid, calcium carbonate, microcrystalline cellulose, croscarmellose sodium, crospovidone, polacrilin potassium, sodium starch glycolate, potato or tapioca starch, pre gelatinized starch, other starches, clays, other algins, other celluloses, gums, and mixtures thereof.
  • Lubricants that can be used in pharmaceutical compositions and dosage forms of the invention include, but are not limited to, calcium stearate, magnesium stearate, mineral oil, light mineral oil, glycerin, sorbitol, mannitol, polyethylene glycol, other glycols, stearic acid, sodium lauryl sulfate, talc, hydrogenated vegetable oil (e.g., peanut oil, cottonseed oil, sunflower oil, sesame oil, olive oil, corn oil, and soybean oil), zinc stearate, ethyl oleate, ethyl laureate, agar, and mixtures thereof.
  • calcium stearate e.g., magnesium stearate, mineral oil, light mineral oil, glycerin, sorbitol, mannitol, polyethylene glycol, other glycols, stearic acid, sodium lauryl sulfate, talc
  • hydrogenated vegetable oil e.g., peanut oil, cottonseed oil
  • Additional lubricants include, for example, a syloid silica gel (AEROSIL 200, manufactured by W.R. Grace Co. of Baltimore, MD), a coagulated aerosol of synthetic silica (marketed by Degussa Co. of Plano, TX), CAB O SIL (a pyrogenic silicon dioxide product sold by Cabot Co. of Boston, MA), and mixtures thereof. If used at all, lubricants are typically used in an amount of less than about I weight percent of the pharmaceutical compositions or dosage forms into which they are incorporated.
  • AEROSIL 200 a syloid silica gel
  • a coagulated aerosol of synthetic silica marketed by Degussa Co. of Plano, TX
  • CAB O SIL a pyrogenic silicon dioxide product sold by Cabot Co. of Boston, MA
  • lubricants are typically used in an amount of less than about I weight percent of the pharmaceutical compositions or dosage forms into which they are incorporated.
  • Active ingredients such as the compounds disclosed herein can be administered by controlled release means or by delivery devices that are well known to those of ordinary skill in the art. Examples include, but are not limited to, those described in U.S. Patent Nos.: 3,845,770 ; 3,916,899 ; 3,536,809 ; 3,598,123 ; and 4,008,719 , 5,674,533 , 5,059,595 , 5,591,767 , 5,120,548 , 5,073,543 , 5,639,476 , 5,354,556 , and 5,733,566 , each of which is incorporated herein by reference.
  • Such dosage forms can be used to provide slow or controlled release of one or more active ingredients using, for example, hydropropylmethyl cellulose, other polymer matrices, gels, permeable membranes, osmotic systems, multilayer coatings, microparticles, liposomes, microspheres, or a combination thereof to provide the desired release profile in varying proportions.
  • Suitable controlled release formulations known to those of ordinary skill in the art, including those described herein, can be readily selected for use with the active ingredients of the invention.
  • the invention thus encompasses single unit dosage forms suitable for oral administration such as, but not limited to, tablets, capsules, gelcaps, and caplets that are adapted for controlled release.
  • controlled release pharmaceutical products have a common goal of improving drug therapy over that achieved by their non controlled counterparts.
  • the use of an optimally designed controlled release preparation in medical treatment is characterized by a minimum of drug substance being employed to cure or control the condition in a minimum amount of time.
  • Advantages of controlled release formulations include extended activity of the drug, reduced dosage frequency, and increased subject compliance.
  • controlled release formulations can be used to affect the time of onset of action or other characteristics, such as blood levels of the drug, and can thus affect the occurrence of side ( e . g ., adverse) effects.
  • Controlled release of an active ingredient can be stimulated by various conditions including, but not limited to, pH, temperature, enzymes, water, or other physiological conditions or compounds.
  • parenteral dosage forms can be administered to subjects by various routes including, but not limited to, subcutaneous, intravenous (including bolus injection), intramuscular, and intraarterial. Because their administration typically bypasses subjects' natural defenses against contaminants, parenteral dosage forms are preferably sterile or capable of being sterilized prior to administration to a subject. Examples of parenteral dosage forms include, but are not limited to, solutions ready for injection, dry products ready to be dissolved or suspended in a pharmaceutically acceptable vehicle for injection, suspensions ready for injection, and emulsions.
  • Suitable vehicles that can be used to provide parenteral dosage forms of the invention are well known to those skilled in the art. Examples include, but are not limited to: Water for Injection USP; aqueous vehicles such as, but not limited to, Sodium Chloride Injection, Ringer's Injection, Dextrose Injection, Dextrose and Sodium Chloride Injection, and Lactated Ringer's Injection; water miscible vehicles such as, but not limited to, ethyl alcohol, polyethylene glycol, and polypropylene glycol; and non aqueous vehicles such as, but not limited to, corn oil, cottonseed oil, peanut oil, sesame oil, ethyl oleate, isopropyl myristate, and benzyl benzoate.
  • aqueous vehicles such as, but not limited to, Sodium Chloride Injection, Ringer's Injection, Dextrose Injection, Dextrose and Sodium Chloride Injection, and Lactated Ringer's Injection
  • Transdermal, topical, and mucosal dosage forms of the invention include, but are not limited to, ophthalmic solutions, sprays, aerosols, creams, lotions, ointments, gels, solutions, emulsions, suspensions, or other forms known to one of skill in the art. See, e.g., Remington's Pharmaceutical Sciences, 16th and 18th eds., Mack Publishing, Easton PA (1980 & 1990 ); and Introduction to Pharmaceutical Dosage Forms, 4th ed., Lea & Febiger, Philadelphia (1985 ).
  • transdermal dosage forms suitable for treating mucosal tissues within the oral cavity can be formulated as mouthwashes or as oral gels.
  • transdermal dosage forms include "reservoir type” or “matrix type” patches, which can be applied to the skin and worn for a specific period of time to permit the penetration of a desired amount of active ingredients.
  • Suitable excipients e.g ., carriers and diluents
  • other materials that can be used to provide transdermal, topical, and mucosal dosage forms encompassed by this invention are well known to those skilled in the pharmaceutical arts, and depend on the particular tissue to which a given pharmaceutical composition or dosage form will be applied.
  • typical excipients include, but are not limited to, water, acetone, ethanol, ethylene glycol, propylene glycol, butane 1,3 diol, isopropyl myristate, isopropyl palmitate, mineral oil, and mixtures thereof to form lotions, tinctures, creams, emulsions, gels or ointments, which are non toxic and pharmaceutically acceptable.
  • Moisturizers or humectants can also be added to pharmaceutical compositions and dosage forms if desired. Examples of such additional ingredients are well known in the art. See, e.g., Remington's Pharmaceutical Sciences, 16th and 18th eds., Mack Publishing, Easton PA (1980 & 1990 ).
  • penetration enhancers can be used to assist in delivering the active ingredients to the tissue.
  • Suitable penetration enhancers include, but are not limited to: acetone; various alcohols such as ethanol, oleyl, and tetrahydrofuryl; alkyl sulfoxides such as dimethyl sulfoxide; dimethyl acetamide; dimethyl formamide; polyethylene glycol; pyrrolidones such as polyvinylpyrrolidone; Kollidon grades (Povidone, Polyvidone); urea; and various water soluble or insoluble sugar esters such as Tween 80 (polysorbate 80) and Span 60 (sorbitan monostearate).
  • the pH of a pharmaceutical composition or dosage form, or of the tissue to which the pharmaceutical composition or dosage form is applied may also be adjusted to improve delivery of one or more active ingredients.
  • the polarity of a solvent carrier, its ionic strength, or tonicity can be adjusted to improve delivery.
  • Compounds such as stearates can also be added to pharmaceutical compositions or dosage forms to advantageously alter the hydrophilicity or lipophilicity of one or more active ingredients so as to improve delivery.
  • stearates can serve as a lipid vehicle for the formulation, as an emulsifying agent or surfactant, and as a delivery enhancing or penetration enhancing agent.
  • Different salts, hydrates or solvates of the active ingredients can be used to further adjust the properties of the resulting composition.
  • the compounds of the present invention act on enzymes called cyclophilins and inhibit their catalytic activity.
  • Cyclophilins occur in a wide variety of different organisms, including human, yeast, bacteria, protozoa, metazoa, insects, plants, or viruses.
  • inhibition of the cyclophilin catalytic activity by compounds of the present invention often results in an inhibitory effect on the organism.
  • the catalytic activity of cyclophilins plays a role in many different disease situations. Inhibition of this catalytic activity is often associated to a therapeutic effect. Therefore, certain compounds of the present invention can be used for the treatment of infections including that by HCV and HIV (described further below) as well as fungal pathogens, protozoan and metazoan parasites.
  • certain compounds of the present invention can be used to treat neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, and neuropathies.
  • Another use of the compounds of the present invention is protection against tissue damage associated to ischemia and reperfusion such as paralytic damage after spinal cord or head injuries or cardiac damage after myocardial infarct.
  • the compounds of the present invention induce regenerative processes such as that of hair, liver, gingiva, or nerve tissue damaged or lost due to injury or other underlying pathologies, such as damage of the optical nerve in glaucoma.
  • Certain compounds of the invention may affect mitochondrial function and the rate of apotosis in muscles cells of patients diagnosed with, for example Faciocaulohumeral (Landouzy-Dejerine), limb-girdle muscular dystrophy including Duchenne and Becker muscular dystrophy, Ullrich congential muscular dystrophy, and Bethlem myopathy.
  • Faciocaulohumeral Longeral
  • limb-girdle muscular dystrophy including Duchenne and Becker muscular dystrophy
  • Ullrich congential muscular dystrophy and Bethlem myopathy.
  • Certain compounds of the present invention can be used to treat chronic inflammatory and autoimmune diseases.
  • the regulation of the immune response by the compounds disclosed herein would also find utility in the treatment of autoimmune diseases, such as rheumatoid arthritis, systemic lupus erythematosis, hyperimmunoglobulin E, Hashimoto's thyroiditis, multiple sclerosis, progressive systemic sclerosis, myasthenia gravis, type I diabetes, uveitis, allergic encephalomyelitis, glomerulonephritis.
  • Further uses include the treatment and prophylaxis of inflammatory and hyperproliferative skin diseases and cutaneous manifestations of immunologically-mediated illnesses, such as psoriasis, atopic dermatitis, contact dermatitis and further eczematous dermatitises, seborrhoeis dermatitis, Lichen planus, Pemphigus, bullous pemphigoid, Epidermolysis bullosa, urticaria, angioedemas, vasculitides, erythemas, cutaneous eosinophilias, Lupus erythematosus, acne and Alopecia areata; various eye diseases (autoimmune and otherwise) such as keratoconjunctivitis, vernal conjunctivitis, keratitis, herpetic keratitis, conical cornea, dystrophia epithelialis corneae, corneal leukoma, ocular pemphigus, Mooren's ulcer, Scleriti
  • hyperproliferative vascular diseases such as intimal smooth muscle cell hyperplasia, restenosis and vascular occlusion, particularly following biologically- or mechanically-mediated vascular injury can be treated or prevented by the compounds disclosed herein.
  • Other treatable conditions would include but are not limited to ischemic bowel diseases; inflammatory bowel diseases, necrotizing enterocolitis, intestinal lesions associated with thermal bums and leukotriene B4-mediated diseases; intestinal inflammations/allergies such as Coeliac diseases, proctitis, eosinophilic gastroenteritis, mastocytosis, Crohn's disease and ulcerative colitis; food-related allergic diseases which have symptomatic manifestation remote from the gastro-intestinal tract ( e.g ., migraine, rhinitis and eczema); renal diseases such as interstitial nephritis, Goodpasture's syndrome, hemolytic-uremic syndrome and diabetic nephropathy;: nervous diseases such as multiple myositis, Guilla
  • the compounds disclosed herein are useful for the treatment and prevention of hepatic disease such as immunogenic diseases (e.g ., chronic autoimmune liver diseases such as the group consisting of autoimmune hepatitis, primary biliary cirrhosis and sclerosing cholangitis), partial liver resection, acute liver necrosis, cirrhosis (such as alcoholic cirrhosis) and hepatic failure such as fulminant hepatic failure, late-onset hepatic failure and acute liver failure on chronic liver diseases.
  • immunogenic diseases e.g ., chronic autoimmune liver diseases such as the group consisting of autoimmune hepatitis, primary biliary cirrhosis and sclerosing cholangitis
  • partial liver resection such as the group consisting of autoimmune hepatitis, primary biliary cirrhosis and sclerosing cholangitis
  • acute liver necrosis such as alcoholic cirrhosis
  • cirrhosis
  • kits for using a compound or composition of the invention for the treatment or prevention of a retroviral infection in a subject in need thereof generally comprise the step of administering to the subject an effective amount of the compound or composition to treat or prevent the retroviral infection.
  • the retroviral infection is HCV infection.
  • the subject can be any subject infected with, or at risk for infection with, HCV.
  • Infection or risk for infection can be determined according to any technique deemed suitable by the practitioner of skill in the art.
  • Particularly preferred subjects are humans infected with HCV.
  • the HCV can be any HCV known to those of skill in the art. There are at least six genotypes and at least 50 subtypes of HCV currently known to those of skill in the art.
  • the HCV can be of any genotype or subtype known to those of skill.
  • the HCV is of a genotype or subtype not yet characterized.
  • the subject is infected with HCV of a single genotype. In certain embodiments, the subject is infected with HCV of multiple subtypes or multiple genotypes.
  • the HCV is genotype I and can be of any subtype.
  • the HCV is subtype 1a, 1b or 1c. It is believed that HCV infection of genotype 1 responds poorly to current interferon therapy. Methods of the present invention can be advantageous for therapy of HCV infection with genotype 1.
  • the HCV is other than genotype 1.
  • the HCV is genotype 2 and can be of any subtype.
  • the HCV is subtype 2a, 2b or 2c.
  • the HCV is genotype 3 and can be of any subtype.
  • the HCV is subtype 3a, 3b or 10a.
  • the HCV is genotype 4 and can be of any subtype.
  • the HCV is subtype 4a.
  • the HCV is genotype 5 and can be of any subtype. For instance, in certain embodiments, the HCV is subtype 5a.
  • the HCV is genotype 6 and can be of any subtype.
  • the HCV is subtype 6a, 6b, 7b, 8b, 9a or 11a. See, e.g., Simmonds, 2004, J Gen Virol. 85:3173-88 ; Simmonds, 2001, J. Gen. Virol., 82, 693-712 , the contents of which are incorporated by reference in their entirety.
  • the subject has never received therapy or prophylaxis for HCV infection.
  • the subject has previously received therapy or prophylaxis for HCV infection.
  • the subject has not responded to HCV therapy. Indeed, under current interferon therapy, up to 50% or more HCV subjects do not respond to therapy.
  • the subject can be a subject that received therapy but continued to suffer from viral infection or one or more symptoms thereof.
  • the subject can be a subject that received therapy but failed to achieve a sustained virologic response.
  • the subject has received therapy for HCV infection but has failed show a 2 log 10 decline in HCV RNA levels after 12 weeks of therapy.
  • the subject is a subject that discontinued HCV therapy because of one or more adverse events associated with the therapy.
  • the subject is a subject where current therapy is not indicated.
  • certain therapies for HCV are associated with neuropsychiatric events.
  • Interferon (IFN)-alfa plus ribavirin is associated with a high rate of depression.
  • Depressive symptoms have been linked to a worse outcome in a number of medical disorders.
  • Life-threatening or fatal neuropsychiatric events including suicide, suicidal and homicidal ideation, depression, relapse of drug addiction/overdose, and aggressive behavior have occurred in subjects with and without a previous psychiatric disorder during HCV therapy.
  • Interferon-induced depression is a limitation for the treatment of chronic hepatitis C, especially for subjects with psychiatric disorders. Psychiatric side effects are common with interferon therapy and responsible for about 10% to 20% of discontinuations of current therapy for HCV infection.
  • the present invention provides methods of treating or preventing HCV infection in subjects where the risk of neuropsychiatric events, such as depression, contraindicates treatment with current HCV therapy.
  • the present invention also provides methods of treating or preventing HCV infection in subjects where a neuropsychiatric event, such as depression, or risk of such indicates discontinuation of treatment with current HCV therapy.
  • the present invention further provides methods of treating or preventing HCV infection in subjects where a neuropsychiatric event, such as depression, or risk of such indicates dose reduction of current HCV therapy.
  • Current therapy is also contraindicated in subjects that are hypersensitive to interferon or ribavirin, or both, or any other component of a pharmaceutical product for administration of interferon or ribavirin.
  • Current therapy is not indicated in subjects with hemoglobinopathies (e . g ., thalassemia major, sickle-cell anemia) and other subjects at risk from the hematologic side effects of current therapy.
  • hemoglobinopathies e . g ., thalassemia major, sickle-cell anemia
  • Common hematologic side effects are include bone marrow suppression, neutropenia and thrombocytopenia.
  • ribavirin is toxic to red blood cells and is associated with hemolysis.
  • the present invention also provides methods of treating or preventing HCV infection in subjects hypersensitive to interferon or ribavirin, or both, subjects with a hemoglobinopathy, for instance thalassemia major subjects and sickle-cell anemia subjects, and other subjects at risk from the hematologic side effects of current therapy.
  • a hemoglobinopathy for instance thalassemia major subjects and sickle-cell anemia subjects
  • the subject has received HCV therapy and discontinued that therapy prior to administration of a method of the invention. In further embodiments, the subject has received therapy and continues to receive that therapy along with administration of a method of the invention.
  • the methods of the invention can be co-administered with other therapy for HCV according to the judgment of one of skill in the art. In advantageous embodiments, the methods or compositions of the invention can be co-administered with a reduced dose of the other therapy for HCV.
  • the present invention provides methods of treating a subject that is refractory to treatment with interferon.
  • the subject can be a subject that has failed to respond to treatment with one or more agents selected from the group consisting of interferon, interferon ⁇ , pegylated interferon ⁇ , interferon plus ribavirin, interferon ⁇ plus ribavirin and pegylated interferon a plus ribavirin.
  • the subject can be a subject that has responded poorly to treatment with one or more agents selected from the group consisting of interferon, interferon a, pegylated interferon ⁇ , interferon plus ribavirin, interferon ⁇ plus ribavirin and pegylated interferon ⁇ plus ribavirin.
  • the present invention provides methods of treating HCV infection in subjects that are pregnant or might get pregnant since current therapy is also contraindicated in pregnant women.
  • the methods or compositions of the invention are administered to a subject following liver transplant.
  • Hepatitis C is a leading cause of liver transplantation in the U.S, and many subjects that undergo liver transplantation remain HCV positive following transplantation.
  • the present invention provides methods of treating such recurrent HCV subjects with a compound or composition of the invention.
  • the present invention provides methods of treating a subject before, during or following liver transplant to prevent recurrent HCV infection.
  • doses are from about 1 to about 2000 mg per day for an adult, or from about 5 to about 250 mg per day or from about 10 to 50 mg per day for an adult. In certain embodiments, doses are from about 5 to about 400 mg per day, and more preferably 25 to 200 mg per day per adult. Dose rates of from about 50 to about 500 mg per day are also preferred.
  • the present invention provides methods of treating or preventing HCV infection in a subject by administering, to a subject in need thereof, an effective amount of a compound of the invention, or a pharmaceutically acceptable salt thereof, with a high therapeutic index against HCV.
  • the therapeutic index can be measured according to any method known to those of skill in the art, such as the method described in the examples below.
  • the therapeutic index is the ratio of a concentration at which the compound is toxic, to the concentration that is effective against HCV.
  • Toxicity can be measured by any technique known to those of skill including cytotoxicity (e.g., IC 50 or IC 90 ) and lethal dose ( e.g., LD 50 or LD 90 ).
  • effective concentrations can be measured by any technique known to those of skill including effective concentration (e.g., EC 50 or EC 90 ) and effective dose (e.g., ED 50 or ED 90 ).
  • effective concentration e.g., EC 50 or EC 90
  • ED 50 or ED 90 effective dose
  • similar measurements are compared in the ratio ( e . g ., IC 50 /EC 50 , IC 90 /EC 90 , LD 50 /ED 50 or LD 90 /ED 90 ).
  • the therapeutic index can be as high as 2.0, 5.0, 10.0, 15.0, 20.0, 25.0, 50.0, 75.0, 100.0, 125.0, 150.0 or higher.
  • the amount of the compound or composition of the invention which will be effective in the prevention or treatment of a disorder or one or more symptoms thereof will vary with the nature and severity of the disease or condition, and the route by which the active ingredient is administered.
  • the frequency and dosage will also vary according to factors specific for each subject depending on the specific therapy (e . g ., therapeutic or prophylactic agents) administered, the severity of the disorder, disease, or condition, the route of administration, as well as age, body, weight, response, and the past medical history of the subject.
  • Effective doses may be extrapolated from dose-response curves derived from in vitro or animal model test systems.
  • Exemplary doses of a composition include milligram or microgram amounts of the active compound per kilogram of subject or sample weight (e.g., about 10 micrograms per kilogram to about 50 milligrams per kilogram, about 100 micrograms per kilogram to about 25 milligrams per kilogram, or about 100 microgram per kilogram to about 10 milligrams per kilogram).
  • the dosage administered to a subject is typically 0.140 mg/kg to 3 mg/kg of the subject's body weight, based on weight of the active compound.
  • the dosage administered to a subject is between 0.20 mg/kg and 2.00 mg/kg, or between 0.30 mg/kg and 1.50 mg/kg of the subject's body weight.
  • the recommended daily dose range of a composition of the invention for the conditions described herein lie within the range of from about 0.1 mg to about 2000 mg per day, given as a single once-a-day dose or as divided doses throughout a day.
  • the daily dose is administered twice daily in equally divided doses.
  • a daily dose range should be from about 10 mg to about 200 mg per day, more specifically, between about 10 mg and about 150 mg per day, or even more specifically between about 25 and about 100 mg per day. It may be necessary to use dosages of the active ingredient outside the ranges disclosed herein in some cases, as will be apparent to those of ordinary skill in the art.
  • the clinician or treating physician will know how and when to interrupt, adjust, or terminate therapy in conjunction with subject response.
  • compositions of the invention are also encompassed by the above described dosage amounts and dose frequency schedules.
  • the dosage administered to the subject may be increased to improve the prophylactic or therapeutic effect of the composition or it may be decreased to reduce one or more side effects that a particular subject is experiencing.
  • the dosage of the composition of the invention or a composition of the invention, based on weight of the active compound, administered to prevent, treat, manage, or ameliorate a disorder, or one or more symptoms thereof in a subject is about 0.1 mg/kg, 1 mg/kg, 2 mg/kg, 3 mg/kg, 4 mg/kg, 5 mg/kg, 6 mg/kg, 10 mg/kg, 15 mg/kg, or 30 mg/kg or more of a subject's body weight.
  • the dosage of the composition of the invention or a composition of the invention administered to prevent, treat, manage, or ameliorate a disorder, or one or more symptoms thereof in a subject is a unit dose of about 0.1 mg to about 200 mg, about 0.1 mg to about 100 mg, about 0.1 mg to about 50 mg, about 0.1 mg to about 25 mg, about 0.1mg to about 20 mg, about 0.1 mg to about 15 mg, about 0.1 mg to about 10 mg, about 0.1 mg to about 7.5 mg, about 0.1 mg to about 5 mg, about 0.1 to about 2.5 mg, about 0.25 mg to about 20 mg, about 0.25 to about 15 mg, about 0.25 to about 12 mg, about 0.25 to about 10 mg, about 0.25 mg to about 7.5 mg, about 0.25 mg to about 5 mg, about 0.5 mg to about 2.5 mg, about I mg to about 20 mg, about 1 mg to about 15 mg, about I mg to about 12 mg, about I mg to about 10 mg, about 1 mg to about 7.5 mg, about 1 mg to about 5 mg, or about 1 mg
  • treatment or prevention can be initiated with one or more loading doses of a compound or composition of the invention followed by one or more maintenance doses.
  • the loading dose can be, for instance, about 60 to about 2000 mg per day, or about 100 to about 200 mg per day for one day to five weeks.
  • the loading dose can be followed by one or more maintenance doses.
  • Each maintenance does can be, independently, about from about 10 mg to about 200 mg per day, more specifically, between about 25 mg and about 150 mg per day, or even more specifically between about 25 and about 80 mg per day.
  • Maintenance doses are preferably administered daily and can be administered as single doses, or as divided doses.
  • a dose of a compound or composition of the invention can be administered to achieve a steady-state concentration of the active ingredient in blood or serum of the subject.
  • the steady-state concentration can be determined by measurement according to techniques available to those of skill or can be based on the physical characteristics of the subject such as height, weight and age.
  • a sufficient amount of a compound or composition of the invention is administered to achieve a steady-state concentration in blood or serum of the subject of from about 300 to about 4000 ng/mL, from about 400 to about 1600 ng/mL, or from about 600 to about 1200 ng/mL.
  • Loading doses can be administered to achieve steady-state blood or serum concentrations of about 1200 to about 8000 ng/mL, or about 2000 to about 4000 ng/mL for one to five days.
  • Maintenance doses can be administered to achieve a steady-state concentration in blood or serum of the subject of from about 300 to about 4000 ng/mL, from about 400 to about 1600 ng/mL, or from about 600 to about 1200 ng/mL.
  • administration of the same composition of the invention may be repeated and the administrations may be separated by at least 1 day, 2 days, 3 days, 5 days, 10 days, 15 days, 30 days, 45 days, 2 months, 75 days, 3 months, or 6 months.
  • administration of the same prophylactic or therapeutic agent may be repeated and the administration may be separated by at least at least I day, 2 days, 3 days, 5 days, 10 days, 15 days, 30 days, 45 days, 2 months, 75 days, 3 months, or 6 months.
  • the present invention provides unit dosages comprising a compound of the invention, or a pharmaceutically acceptable salt thereof, in a form suitable for administration. Such forms are described in detail above.
  • the unit dosage comprises I to 2000 mg, 5 to 250 mg or 10 to 50 mg active ingredient.
  • the unit dosages comprise about 1, 5, 10, 25, 50, 100, 125, 250, 500, 1000 or 2000 mg active ingredient.
  • Such unit dosages can be prepared according to techniques familiar to those of skill in the art.
  • the present invention provides methods of treatment of prevention that comprise the administration of a second agent effective for the treatment or prevention of HCV infection in a subject in need thereof.
  • the second agent can be any agent known to those of skill in the art to be effective for the treatment or prevention of the HCV infection.
  • the second agent can be a second agent presently known to those of skill in the art, or the second agent can be second agent later developed for the treatment or prevention of HCV.
  • the second agent is presently approved for the treatment or prevention of HCV.
  • a compound of the invention is administered in combination with one second agent.
  • a second agent is administered in combination with two second agents.
  • a second agent is administered in combination with two or more second agents.
  • Suitable second agents include small-molecule, orally bioavailable inhibitors of the HCV enzymes, nucleic-acid-based agents that attack viral RNA, agents that can modulate the host immune response.
  • Exemplary second agents include: (i) current approved therapies (peg-interferon plus ribavirin), (ii) HCV-enzyme targeted compounds, (iii) viral-genome-targeted therapies ( e . g ., RNA interference or RNAi), and (iv) immunomodulatory agents such as ribavirin, interferon (INF) and Toll-receptor agonists.
  • the second agent is a modulator of the NS3-4A protease.
  • the NS3-4A protease is a heterodimeric protease, comprising the amino-terminal domain of the NS3 protein and the small NS4A cofactor. Its activity is essential for the generation of components of the viral RNA replication complex.
  • BILN 2061 (Ciluprevir; Boehringer Ingelheim), a macrocyclic mimic of peptide product inhibitors. Although clinical trials with BILN 2061 were halted (preclinical cardiotoxicity), it was the first NS3 inhibitor to be tested in humans. See Lamarre et al., 2003, Nature 426:186-189 .
  • NS3-4A protease inhibitor is VX-950 (Vertex/Mitsubishi), a protease-cleavage-product-derived peptidomimetic inhibitor of the NS3-4A protease. It is believed to be stabilized into the enzyme's active site through a ketoamide. See, e.g., Lin et al., 2005, J. Biol. Chem. Manuscript M506462200 (epublicati on); Summa, 2005, Curr. Opin. Investig. Drugs. 6:831-7 .
  • the second agent is a modulator of the HCV NS5B
  • NM283 Valopicitabine; Idenix/Novartis
  • NM283 is an oral prodrug (valine ester) of NM107 (2'-C-methyl-cytidine) in phase 11 trials for the treatment or prevention of HCV infection. See, e.g., U.S. Patent Application Publication No. 20040077587 .
  • RdRp useful modulators of RdRp include 7-deaza nucleoside analogs.
  • 7-Deaza-2'-C-methyl-adenosine is a potent and selective inhibitor of hepatitis C virus replication with excellent pharmacokinetic properties. Olsen et al., 2004, Antimicrob. Agents Chemother. 48:3944-3953 .
  • the second agent is a non-nucleoside modulator of NS5B.
  • NS5B non-nucleoside modulator of NS5B.
  • N1 non-nucleoside inhibitors
  • Useful non-nucleoside modulators of NS5B include JTK-003 and JTK-009. JTK-003 has been advanced to phase II.
  • Useful non-nucleoside modulators of NS5B include the 6,5-fused heterocyclic compounds based on a benzimidazole or indole core. See, e.g., Hashimoto et al., WO 2000/147883 .
  • NNIs include R803 (Rigel) and HCV-371, HCV-086 and HCV-796 (ViroPharma/Wyeth).
  • Additional useful NNIs include thiophene derivatives that are reversible allosteric inhibitors of the NS5B polymerase and bind to a site that is close to, but distinct from, the site occupied by benzimidazole-based inhibitors. See, e.g ., Biswal, et al., 2005, J. Biol. Chem. 280:18202-18210 .
  • NNIs for the methods of the invention include benzothiadiazines, such as benzo-1,2,4-thiadiazines.
  • benzothiadiazines such as benzo-1,2,4-thiadiazines.
  • Derivatives of benzo-1,2,4-thiadiazine have been shown to be highly selective inhibitors of the HCV RNA polymerase. Dhanak et al., 2002, J. Biol. Chem. 277:38322-38327 .
  • NNIs for the methods of the invention, and their mechanisms, are described in LaPlante et al., 2004, Angew Chem. Int. Ed. Engl. 43:4306-4311 ; Tomei et al., 2003, J. Virol. 77:13225-13231 ; Di Marco et al., 2005, J. Biol. Chem. 280:29765-70 ; Lu, H., WO 2005/000308 ; Chan et al., 2004, Bioorg. Med. Chem. Lett. 14:797-800 ; Chan et al., 2004, Bioorg. Med. Chem. Lett. 14:793-796 ; Wang et al., 2003, J. Biol. Chem.
  • the second agent is an agent that is capable of interfering with HCV RNA such as small inhibitory RNA (siRNA) or a short hairpin RNA (shRNA) directed to an HCV polynucleotide.
  • siRNA small inhibitory RNA
  • shRNA short hairpin RNA
  • tissue culture siRNA and vector-encoded short hairpin RNA shRNA directed against the viral genome, effectively block the replication of HCV replicons. See, e.g., Randall et al., 2003, Proc. Natl Acad. Sci. USA 100:235-240 .
  • the second agent is an agent that modulates the subject's immune response.
  • the second agent can be a presently approved therapy for HCV infection such as an interferon (IFN), a pegylated IFN, an IFN plus ribavirin or a pegylated IFN plus ribavirin.
  • IFN interferon
  • Preferred interferons include IFN ⁇ , IFN ⁇ 2a and IFN ⁇ 2b, and particularly pegylated IFN ⁇ 2a (PEGASYS®) or pegylated IFN ⁇ 2b (PEG-INTRON®).
  • the second agent is a modulator of a Toll-like receptor (TLR).
  • TLRs are targets for stimulating innate anti-viral response. Suitable TLRs include, bur are not limited to, TLR3, TLR7, TLR8 and TLR9. It is believed that toll-like receptors sense the presence of invading microorganisms such as bacteria, viruses and parasites. They are expressed by immune cells, including macrophages, monocytes, dendritic cells and B cells. Stimulation or activation of TLRs can initiate acute inflammatory responses by induction of antimicrobial genes and pro-inflammatory cytokines and chemokines.
  • the second agent is a polynucleotide comprising a CpG motif.
  • Synthetic oligonucleotides containing unmethylated CpG motifs are potent agonists of TLR-9. Stimulation of dendritic cells with these oligonucleotides results in the production of tumour necrosis factor-alpha, interleukin-12 and IFN-alpha.
  • TLR-9 ligands are also potent stimulators of B-cell proliferation and antibody secretion.
  • One useful CpG-containing oligonucleotide is CPG-10101 (Actilon; Coley Pharmaceutical Group) which has been evaluated in the clinic.
  • ANA975 Another useful modulator of a TLR is ANA975 (Anadys). ANA975 is believed to act through TLR-7, and is known to elicit a powerful anti-viral response via induction and the release of inflammatory cytokines such as IFN-alpha.
  • the second agent is Celgosivir.
  • Celgosivir is an alpha-glucosidase I inhibitor and acts through host-directed glycosylation. In preclinical studies, celgosivir has demonstrated strong synergy with IFN ⁇ plus ribavirin. See, e.g., Whitby et al., 2004, Antivir Chem Chemother. 15(3):141-51 . Celgosivir is currently being evaluated in a Phase II monotherapy study in chronic HCV patients in Canada.
  • the second agent of the invention can be formulated or packaged with the cyclosporine derivatives of the invention.
  • the second agent will only be formulated with the cyclosporine derivative of the present invention when, according to the judgment of those of skill in the art, such co-formulation should not interfere with the activity of either agent or the method of administration.
  • the cyclosporine derivative of the invention and the second agent are formulated separately. They can be packaged together, or packaged separately, for the convenience of the practitioner of skill in the art.
  • the dosages of the second agents are to be used in the combination therapies of the invention. In certain embodiments, dosages lower than those which have been or are currently being used to prevent or treat HCV infection are used in the combination therapies of the invention.
  • the recommended dosages of second agents can obtained from the knowledge of those of skill. For those second agents that are approved for clinical use, recommended dosages are described in, for example, Hardman et al., eds., 1996, Goodman & Gilman's The Pharmacological Basis Of Basis Of Therapeutics 9th Ed, Mc-Graw-Hill, New York ; Physician's Desk Reference (PDR) 57th Ed., 2003, Medical Economics Co., Inc., Montvale, NJ .
  • the therapies are administered less than 5 minutes apart, less than 30 minutes apart, I hour apart, at about I hour apart, at about I to about 2 hours apart, at about 2 hours to about 3 hours apart, at about 3 hours to about 4 hours apart, at about 4 hours to about 5 hours apart, at about 5 hours to about 6 hours apart, at about 6 hours to about 7 hours apart, at about 7 hours to about 8 hours apart, at about 8 hours to about 9 hours apart, at about 9 hours to about 10 hours apart, at about 10 hours to about 11 hours apart, at about 11 hours to about 12 hours apart, at about 12 hours to 18 hours apart, 18 hours to 24 hours apart, 24 hours to 36 hours apart, 36 hours to 48 hours apart, 48 hours to 52 hours apart, 52 hours to 60 hours apart, 60 hours to 72 hours apart, 72 hours to 84 hours apart, 84 hours to 96 hours apart, or 96 hours to 120 hours part.
  • two or more therapies are administered within the same patent
  • the cyclosporine derivative of the invention and the second agent are cyclically administered.
  • Cycling therapy involves the administration of a first therapy (e.g ., a first prophylactic or therapeutic agents) for a period of time, followed by the administration of a second therapy (e.g ., a second prophylactic or therapeutic agents) for a period of time, followed by the administration of a third therapy (e.g., a third prophylactic or therapeutic agents) for a period of time and so forth, and repeating this sequential administration, i.e., the cycle in order to reduce the development of resistance to one of the agents, to avoid or reduce the side effects of one of the agents, and/or to improve the efficacy of the treatment.
  • a first therapy e.g ., a first prophylactic or therapeutic agents
  • a second therapy e.g ., a second prophylactic or therapeutic agents
  • a third therapy e.g., a third prophylactic or therapeutic agents
  • administration of the same agent may be repeated and the administrations may be separated by at least 1 day, 2 days, 3 days, 5 days, 10 days, 15 days, 30 days, 45 days, 2 months, 75 days, 3 months, or 6 months. In other embodiments, administration of the same agent may be repeated and the administration may be separated by at least at least 1 day, 2 days, 3 days, 5 days, 10 days, 15 days, 30 days, 45 days, 2 months, 75 days, 3 months, or 6 months.
  • a cyclosporine derivative of the invention and a second agent are administered to a patient, preferably a mammal, more preferably a human, in a sequence and within a time interval such that the cyclosporine derivative can act together with the other agent to provide an increased benefit than if they were administered otherwise.
  • the second active agent can be administered at the same time or sequentially in any order at different points in time; however, if not administered at the same time, they should be administered sufficiently close in time so as to provide the desired therapeutic or prophylactic effect.
  • the cyclosporine derivative and the second active agent exert their effect at times which overlap.
  • Each second active agent can be administered separately, in any appropriate form and by any suitable route.
  • the cyclosporine derivative is administered before, concurrently or after administration of the second active agent.
  • the cyclosporine derivative and the second agent are administered less than about I hour apart, at about I hour apart, at about 1 hour to about 2 hours apart, at about 2 hours to about 3 hours apart, at about 3 hours to about 4 hours apart, at about 4 hours to about 5 hours apart, at about 5 hours to about 6 hours apart, at about 6 hours to about 7 hours apart, at about 7 hours to about 8 hours apart, at about 8 hours to about 9 hours apart, at about 9 hours to about 10 hours apart, at about 10 hours to about 11 hours apart, at about 11 hours to about 12 hours apart, no more than 24 hours apart or no more than 48 hours apart.
  • the cyclosporine derivative and the second agent are administered concurrently.
  • the cyclosporine derivative and the second agent are administered at about 2 to 4 days apart, at about 4 to 6 days apart, at about I week part, at about 1 to 2 weeks apart, or more than 2 weeks apart.
  • the cyclosporine derivative and the second agent are cyclically administered to a patient.
  • Cycling therapy involves the administration of a first agent for a period of time, followed by the administration of a second agent and/or third agent for a period of time and repeating this sequential administration. Cycling therapy can reduce the development of resistance to one or more of the therapies, avoid or reduce the side effects of one of the therapies, and/or improve the efficacy of the treatment.
  • the cyclosporine derivative and the second active agent are administered in a cycle of less than about 3 weeks, about once every two weeks, about once every 10 days or about once every week.
  • One cycle can comprise the administration of a cyclosporine derivative and the second agent by infusion over about 90 minutes every cycle, about 1 hour every cycle, about 45 minutes every cycle.
  • Each cycle can comprise at least 1 week of rest, at least 2 weeks of rest, at least 3 weeks of rest.
  • the number of cycles administered is from about 1 to about 12 cycles, more typically from about 2 to about 10 cycles, and more typically from about 2 to about 8 cycles.
  • courses of treatment are administered concurrently to a patient, i.e ., individual doses of the second agent are administered separately yet within a time interval such that the cyclosporine derivative can work together with the second active agent.
  • one component can be administered once per week in combination with the other components that can be administered once every two weeks or once every three weeks.
  • the dosing regimens are carried out concurrently even if the therapeutics are not administered simultaneously or during the same day.
  • the second agent can act additively or, more preferably, synergistically with the cyclosporine derivative.
  • a cyclosporine derivative is administered concurrently with one or more second agents in the same pharmaceutical composition.
  • a cyclosporine derivative is administered concurrently with one or more second agents in separate pharmaceutical compositions.
  • a cyclosporine derivative is administered prior to or subsequent to administration of a second agent.
  • the invention contemplates administration of a cyclosporine derivative and a second agent by the same or different routes of administration, e.g ., oral and parenteral.
  • the second active agent when a cyclosporine derivative is administered concurrently with a second agent that potentially produces adverse side effects including, but not limited to, toxicity, can advantageously be administered at a dose that falls below the threshold that the adverse side effect is elicited.
  • kits for use in methods of treatment or prophylaxis of HCV infection can include a pharmaceutical compound or composition of the invention and instructions providing information to a health care provider regarding usage for treating or preventing a bacterial infection. Instructions may be provided in printed form or in the form of an electronic medium such as a floppy disc, CD, or DVD, or in the form of a website address where such instructions may be obtained.
  • a unit dose of a compound or composition of the invention can include a dosage such that when administered to a subject, a therapeutically or prophylactically effective plasma level of the compound or composition can be maintained in the subject for at least 1 day.
  • a compound or composition of the invention can be included as a sterile aqueous pharmaceutical composition or dry powder ( e.g ., lyophilized) composition.
  • the compound is according to formula (I).
  • suitable packaging refers to a solid matrix or material customarily used in a system and capable of holding within fixed limits a compound or composition of the invention suitable for administration to a subject.
  • materials include glass and plastic (e.g ., polyethylene, polypropylene, and polycarbonate) bottles, vials, paper, plastic, and plastic-foil laminated envelopes, and the like. If e-beam sterilization techniques are employed, the packaging should have sufficiently low density to permit sterilization of the contents.
  • Kits of the invention may also comprise, in addition to the compound or composition of the invention, second agents or compositions comprising second agents for use with compound or composition as described in the methods above.
  • Diisopropylamine (300mg) was dissolved in anhydrous tetrahydrofuran. This solution was cooled to -25°C under nitrogen. n -Butyl lithium (2.5M/hexanes, 1.2mL) was added and then the mixture was stirred for 30 minutes at -25°C. N-Benzyl-Val 5 -cyclosporine A (320 mg) made, for example, according to Reference Example I, was dissolved in anhydrous tetrahydrofuran, and was added to the solution.
  • reaction mixture was poured into water and diethyl ether was added. The mixture was cooled to 0°C and with stirring, iron (III) chloride was added until no gas evolution was observed. The layers were separated and the organic layer was washed with saturated NaHCO 3 , brine and dried over anhydrous sodium sulfate.
  • Representative compounds of the present invention were tested for activity against HCV using the methods adapted from those described by Kriger et al., 2001, Journal of Virology 75:4614-4624 , Pietschmann et al., 2002, Journal of Virology, 76:4008-4021 , and using HCV RNA constructs as described in US Patent No. 6,630,343 .
  • Compounds were examined in the human hepatoma cell line ET (lub ubi neo/ET), a HCV RNA replicon containing a stable luciferase (LUC) reporter.
  • ET lub ubi neo/ET
  • LOC stable luciferase
  • the HCV RNA replicon ET contains the 5' end of HCV (with the HCV Internal Ribosome Entry Site (IRES) and the first few amino acids of the HCV core protein) which drives the production of a firefly luciferase (LUC), ubiquitin, and neomycin phosphotransferase (NeoR) fusion protein. Ubiquitin cleavage releases the LUC and NeoR proteins.
  • the EMCV IRES element controls the translation of the HCV structural proteins NS3-NS5.
  • the NS3 protein cleaves the HCV polyprotein to release the mature NS3, NS4A, NS4B, NS5A and NS5B proteins that are required for HCV replication.
  • At the 3' end of the replicon is the authentic 3' NTR of HCV.
  • the activity of the LUC reporter is directly proportional to HCV replication levels and positive-control antiviral compounds produce a reproducible antiviral response using the LUC endpoint.
  • the compounds were dissolved in DMSO at five half-log concentrations each, ranging from either 0.03 to 3 ⁇ M or 1 to 100 ⁇ M.
  • Subconfluent cultures of the ET line were plated out into 96 well plates dedicated for the analysis of cell numbers (cytotoxicity) or antiviral activity and the next day the compounds were added to the appropriate wells. The cells were processed 72 hours later when the cells were still subconfluent.
  • Antiviral activity was expressed as EC 50 and EC 90 , the effective concentration of compound that reduced viral replication by 50% and 90%, respectively.
  • Compound EC 50 and EC 90 values were derived from HCV RNA levels assessed as HCV RNA replicon derived LUC activity.
  • Cytotoxicity was expressed as IC 50 and IC 90 , the concentration of compound that inhibited cell viability by 50% and 90%, respectively.
  • Compound IC 50 and IC 90 values were calculated using a colorimetric assay as an indication of cell numbers and cytotoxicity.
  • the activity of the LUC reporter is directly proportional to HCV RNA levels in the human cell line.
  • the HCV-replicon assay was validated in parallel experiments using interferon-alpha-2b as a positive control. Cyclosporine was also tested by way of comparison.
  • Representative compounds disclosed herein inhibited HCV replication in human liver cells. In particular, Compound Nos. 1 to 4, 6 to 12, 14 to 17, 20 and 21 had EC 50 value of less than 1000 nM. Compound 5 had an EC 50 value greater than 1000 nM.
  • a safety margin antiviral IC 50 versus cytotoxicity EC 50 ).
  • cyclophilin inhibition binding of compounds disclosed herein is determined using a competitive ELISA adapted from the methods described by Quesniaux et al. (Eur. J Immunol., 1987, 17:1359-1365 ).
  • Activated ester of succinyl spacers bound to D-Lys 8 -cylosporine A (D-Lys 8 -Cs) are coupled to bovine serum albumin (BSA) through D-lysyl residue in position 8.
  • BSA bovine serum albumin
  • a hundredfold molar excess of D-Lys 8 -Cs dissolved in dimethyl formamide (0.6 ml) is added drop wise to the BSA under vigorous stirring.
  • the coupling reaction is performed for 2 to 3 hours at room temperature under mild stirring and the conjugate is extensively dialyzed against phosphate-buffered saline (PBS, pH 7.4). After acetone precipitation of an aliquot of the conjugated protein, no covalently bound D-Lys 8 -Cs remains in the acetone solution and the extent of cyclosporine covalent binding is calculated.
  • PBS phosphate-buffered saline
  • Microtiter Plates are coated with D-Lys 8 -Cs-BSA conjugate (2 ⁇ g/ml in PBS for 24 hours at 4°C). Plates are washed with Tween®/PBS and with PBS alone. To block nonspecific binding, 2% BSA/PBS (pH 7.4) is added to the wells and allowed to incubate for 2 hours at 37°C. A five-fold dilution series of the compound to be tested is made in ethanol in a separate microtiter plate. The starting concentration is 0.1 mg/mL for assays with human recombinant cyclophilin.
  • cyclosporine A used as a reference compound
  • the reaction between coated BSA-Cs conjugate, free cyclosporine A and cyclophilin is allowed to equilibrate overnight at 4°C.
  • Cyclophilin is detected with anti-cyclophilin rabbit antiserum diluted in 1% BSA containing PBS and incubates overnight at 4°C. Plates are washed as described above.
  • Bound rabbit antibodies are then detected by goat anti-rabbit IgG conjugated to alkaline phosphatase diluted in 1% BSA-PBS and allowed to incubate for 2 hours at 37°C. Plates are washed as described above. After incubation with 4-nitrophenyl phosphate (1 g/l in diethanolamine buffer, pH 9.8) for 1 to 2 hours at 37°C, the enzymatic reaction is measured spectrophotometrically at 405 nm using a spectrophotometer. The results are expressed as an EC 50 , which is the concentration of the compound of the invention required to achieve 50% inhibition.
  • Compounds 1 to 4, 6 to 17, 20 and 21 had EC 50 values of less than 600nM against cyclophilins A and B; Compound 5 had an EC 50 value of greater than 600nM against cyclophilins A and B. Compound Nos. 1 to 3, 6 to 12, 14 to 17 and 21 had EC 50 values of less than 600nM against cyclophilin D; Compound Nos. 4, 5 and 20 had EC 50 values of greater than 600nM against cyclophilin D.
  • IL-2 T Cell stimulation
  • Cyclosporine A (control) is also run at a 0.5-Log 9-point titration starting at 500 ng/mL. All compounds to be tested are dissolved in dimethyl sulfoxide. Cytotoxicity is evaluated with parallel Alamar Blue plates. Jurkat cells are seeded at 2x10 5 cells per well in 190 ⁇ L growth media in a 96-well plate.
  • Cells are cultured in RPMI 1640 medium, 10% fetal bovine serum, and L-Glutamine with incubation at 37°C with 5% carbon dioxide. After 1 hour of incubation the cells are stimulated with immobilized anti-CD3 (0.4 ⁇ g/well), anti-CD28 soluble (2 ⁇ g/mL). After 6 hours the sample supernatants are harvested and stored at -80°C. 50 ⁇ L samples of supernatant are tested for IL-2 using a Luminex® I-plex assay.
  • Mitochondrial Permeability Transition is determined by measuring swelling of the mitochondria induced by Ca 2+ .
  • the procedure is adapted from the method described by Blattner et al., 2001, Analytical Biochem, 295:220 .
  • Mitochondria are prepared from rat livers, which have been perfused with phosphate-buffered saline (PBS) to remove blood, using standard methods that utilize gentle homogenization in sucrose based buffer and then differential centrifugation to first remove cellular debris and then to pellet the mitochondria.
  • Swelling is induced by 150 micro molar Ca 2+ (added from a concentrated solution of CaCl 2 ) and is monitored by measuring the scattering at 535-540 nm.
  • EC 50 is determined by comparing swelling with and without the compounds disclosed herein.
  • Compound Nos. 1, 6 to 11, 14, 16, 20 and 21 had EC 50 values of less than 10 ⁇ m;
  • Compound Nos. 2 to 5 had EC 50 values of greater than 10 ⁇ m;
  • Compound Nos. 12 and 17 had EC 50 values of greater than 1.5 ⁇ m.

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Claims (14)

  1. Dérivé de cyclosporine de formule générale (I) :
    Figure imgb0022
     dans laquelle :
    A représente (E) -CH=CHR ou -CH2CH2R, dans laquelle R représente méthyle, -CH2SH, -CH2(thioalkyle), -CH2(carboxyle), -CH2(alkoxycarbonyle), carboxyle ou alkoxycarbonyle ;
    B représente méthyle, éthyle 1-hydroxyéthyle,
    isopropyle ou n-propyle ;
    R1 représente :
    alkyle à chaîne droite ou ramifiée contenant un à six atomes de carbone, substitué en option par un ou plusieurs groupes R3 qui peuvent être identiques ou différents ;
    alkényle à chaîne droite ou ramifiée contenant deux à six atomes de carbone, substitué en option par un ou plusieurs groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'halogène, hydroxyle, amino, N-monoalkylamino et N,N-dialkylamino ;
    alkynyle à chaîne droite ou ramifiée contenant deux à six atomes de carbone, substitué en option par un ou plusieurs groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'halogène, hydroxyle, amino, N-monoalkylamino et N,N-dialkylamino ;
    cycloalkyle contenant trois à six atomes de carbone substitué en option par un ou plusieurs groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'halogène, hydroxyle, amino, N-monoalkylamino et N,N-dialkylamino ; ou alkoxycarbonyle à chaîne droite ou ramifiée contenant deux à six atomes de carbone ;
    R2 représente :
    alkyle à chaîne droite ou ramifiée contenant un à six atomes de carbone, substitué par un ou plusieurs groupes R41 qui peuvent être identiques ou différents ;
    alkényle à chaîne droite ou ramifiée contenant deux à six atomes de carbone, substitué en option par un ou plusieurs groupes R42 qui peuvent être identiques ou différents ;
    alkynyle à chaîne droite ou ramifiée contenant deux à six atomes de carbone, substitué en option par un ou plusieurs groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'halogène, hydroxyle, amino, N-monoalkylamino et N,N-dialkylamino ;
    cycloalkyle contenant trois à six atomes de carbone substitué en option par un ou plusieurs groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'halogène, hydroxyle, amino, N-monoalkylamino et N,N-dialkylamino ; ou alkoxycarbonyle à chaîne droite ou ramifiée contenant deux à six atomes de carbone ;
    X représente -S(=O)n- ou oxygène, dans laquelle n est zéro, un ou deux ;
    R3 est sélectionné parmi le groupe constitué d'halogène, hydroxyle, alkoxy, carboxyle, alkoxycarbonyle, -NR5R6, -NR7 (CH2)mNR5R6, cycloalkyle et phényle, lequel phényle est substitué en option par un à cinq groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'alkyle, halogénoalkyle, halogène, hydroxyle, alkoxy, amino, N-alkylamino, N,N-dialkylamino, carboxyle et alkoxycarbonyle ; ou R3 est un anneau hétérocyclique saturé ou insaturé, lié à un carbone, contenant quatre à six atomes cycliques, lequel anneau peut contenir un ou deux hétéroatomes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'azote, oxygène et soufre, lequel anneau peut être substitué en option par un à quatre groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'alkyle, halogène, alkoxy, amino, carboxyle et alkyle, lequel alkyle est substitué en option par amino, N-alkylamino ou N,N-dialkylamino ;
    R41 représente :
    halogène, hydroxyle, alkoxy, -OR8, carboxyle, alkoxycarbonyle, -NR5R6, -NR7 (CH2)mNR5R6, formyle, -C(=O)R8, -S(O)pR8, dans laquelle p est zéro, un ou deux ;
    phényle substitué en option par un à cinq groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'alkyle, halogénoalkyle, halogène, hydroxyle, alkoxy, amino, N-alkylamino, N,N-dialkylamino, carboxyle et alkoxycarbonyle ; ou cycloalkyle contenant trois à six atomes de carbone substitué en option par un ou plusieurs groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'halogène, hydroxyle, amino, N-monoalkylamino et N,N-dialkylamino ;
    ou R41 représente un anneau hétérocyclique saturé ou insaturé, lié à un carbone, contenant quatre à six atomes cycliques, lequel anneau contient un à trois hétéroatomes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'azote, oxygène et soufre, lequel anneau peut être substitué en option par un à quatre groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'alkyle, halogène, alkoxy, amino, carboxyle et alkyle, lequel alkyle est substitué par amino, N-alkylamino et N,N-dialkylamino ;
    R42 représente :
    halogène, hydroxyle, -NR5R6, -OR8, carboxyle, alkoxycarbonyle, -C(=O)NR5R6, formyle, -C(=O)R8, -S(O)nR8, -NR7(CH2)mNR5R6;
    phényle substitué en option par un à cinq groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'alkyle, halogénoalkyle, halogène, hydroxyle, alkoxy, amino, N-alkylamino, N,N-dialkylamino, carboxyle et alkoxycarbonyle ; ou cycloalkyle contenant trois à six atomes de carbone substitué en option par un ou plusieurs groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'halogène, hydroxyle, amino, N-monoalkylamino et N,N-dialkylamino ;
    ou R42 représente un anneau hétérocyclique saturé ou insaturé, lié à un carbone, contenant quatre à six atomes cycliques, lequel anneau contient un à trois hétéroatomes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'azote, oxygène et soufre, lequel anneau peut être substitué en option par un à quatre groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'alkyle, halogène, alkoxy, amino, carboxyle et alkyle, lequel alkyle est substitué par amino, N-alkylamino et N,N-dialkylamino ;
    R5 et R6, qui peuvent être identiques ou différents, représentent chacun :
    hydrogène ;
    alkyle à chaîne droite ou ramifiée contenant un à six atomes de carbone ;
    alkényle ou alkynyle à chaîne droite ou ramifiée contenant deux à quatre atomes de carbone ; cycloalkyle contenant trois à six atomes de carbone substitué en option par un alkyle à chaîne droite ou ramifiée contenant un à six atomes de carbone ;
    ou R5 et R6, avec l'atome d'azote auquel ils sont reliés, forment un anneau hétérocyclique saturé ou insaturé contenant quatre à six atomes cycliques, lequel anneau peut contenir en option un autre hétéroatome sélectionné parmi le groupe constitué d'azote, oxygène et soufre, lequel anneau peut être substitué en option par un à quatre groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'alkyle, phényle et benzyle ;
    R7 représente hydrogène, un alkyle à chaîne droite ou ramifiée contenant un à six atomes de carbone, cyano ou alkylsulfonyle ;
    R8 représente :
    alkyle à chaîne droite ou ramifiée contenant un à six atomes de carbone ;
    aryle substitué en option par un à cinq groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'alkyle, halogénoalkyle, halogène, hydroxyle, alkoxy, amino, N-alkylamino et N,N-dialkylamino ;
    hétéroaryle substitué en option par un à cinq groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'alkyle, halogénoalkyle, halogène, hydroxyle, alkoxy, amino, N-alkylamino et N,N-dialkylamino ;
    aralkyle, dans laquelle l'anneau aryle est substitué en option par un à cinq groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'halogène, amino, N-alkylamino, N,N-dialkylamino, alkoxy et halogénoalkyle, dans laquelle l'alkyle contient un à trois atomes de carbone ; ou hétéroarylalkyle, dans laquelle l'anneau hétéroaryle est substitué en option par halogène, amino, N-alkylamino, N,N-dialkylamino, alkoxy et halogénoalkyle, dans laquelle l'alkyle contient un à trois atomes de carbone ;
    m est un entier de un à quatre ;
    ou sel ou solvate pharmaceutiquement acceptable de celui-ci.
  2. Composé selon la revendication 1, dans lequel :
    A représente (E) -CH=CHR ou -CH2CH2R, dans laquelle R représente méthyle, -CH2SH, -CH2(thioalkyle), CH2(carboxyle) ou -CH2(alkoxycarbonyle) ;
    R2 représente :
    alkyle à chaîne droite ou ramifiée contenant un à six atomes de carbone, substitué par un ou plusieurs groupes R41 qui peuvent être identiques ou différents ;
    alkényle à chaîne droite ou ramifiée contenant deux à six atomes de carbone, substitué en option par un ou plusieurs groupes R42 qui peuvent être identiques ou différents ;
    alkynyle à chaîne droite ou ramifiée contenant deux à six atomes de carbone, substitué en option par un ou plusieurs groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'halogène, hydroxyle, amino, N-monoalkylamino et N,N-dialkylamino ;
    cycloalkyle contenant trois à six atomes de carbone substitué en option par un ou plusieurs groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'halogène, hydroxyle, amino, N-monoalkylamino et N,N-dialkylamino ; ou alkoxycarbonyle à chaîne droite ou ramifiée contenant deux à six atomes de carbone ;
    X représente -S(=O)n- ou oxygène, dans laquelle n est zéro, un ou deux ;
    R41 représente :
    halogène, hydroxyle, alkoxy, carboxyle, alkoxycarbonyle, -NR5R6, -NR7(CH2)mNR5R6 ; ou
    phényle substitué en option par un à cinq groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'alkyle, halogénoalkyle, halogène, hydroxyle, alkoxy, amino, N-alkylamino, N,N-dialkylamino, carboxyle et alkoxycarbonyle ;
    ou R41 représente un anneau hétérocyclique saturé ou insaturé, lié à un carbone, contenant quatre à six atomes cycliques, lequel anneau contient un ou deux hétéroatomes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'azote, oxygène et soufre, lequel anneau peut être substitué en option par un à quatre groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'alkyle, halogène, alkoxy, amino, carboxyle et alkyle, lequel alkyle est substitué par amino, N-alkylamino et N,N-dialkylamino ;
    R42 représente halogène, hydroxyle, amino, N-monoalkylamino ou N,N-dialkylamino ;
    R5 et R6, qui peuvent être identiques ou différents, représentent chacun :
    hydrogène ;
    alkyle à chaîne droite ou ramifiée contenant un à six atomes de carbone ;
    alkényle ou alkynyle à chaîne droite ou ramifiée contenant deux à quatre atomes de carbone ;
    cycloalkyle contenant trois à six atomes de carbone substitué en option par un alkyle à chaîne droite ou ramifiée contenant un à six atomes de carbone ;
    ou R5 et R6, avec l'atome d'azote auquel ils sont reliés, forment un anneau hétérocyclique saturé ou insaturé contenant quatre à six atomes cycliques, lequel anneau peut contenir en option un autre hétéroatome sélectionné parmi le groupe constitué d'azote, oxygène et soufre, lequel anneau peut être substitué en option par un à quatre groupes qui peuvent être identiques ou différents sélectionnés parmi le groupe constitué d'alkyle, phényle et benzyle ;
    R7 représente hydrogène, alkyle à chaîne droite ou ramifiée contenant un à six atomes de carbone, cyano ou alkylsulfonyle ; et
    m est un entier de un à quatre.
  3. Composé selon la revendication 1 ou 2, dans lequel X représente oxygène ou soufre.
  4. Composé selon la revendication 1, 2 ou 3, dans lequel R1 est un alkyle à chaîne droite ou ramifiée contenant un à six atomes de carbone, substitué en option par un ou plusieurs groupes R3 qui peuvent être identiques ou différents.
  5. Composé selon la revendication 4, dans lequel R3 représente amino, N-alkylamino, N,N-dialkylamino ou cycloalkyle.
  6. Composé selon l'une quelconque des revendications 1 à 5, dans lequel R2 est un alkyle à chaîne droite ou ramifiée contenant un à six atomes de carbone, substitué par un ou plusieurs groupes R41 qui peuvent être identiques ou différents ; ou R2 est un alkényle à chaîne droite ou ramifiée contenant trois à six atomes de carbone, substitué en option par un groupe R42.
  7. Composé selon la revendication 1, dans lequel R41 représente hydroxyle, -NR5R6, -OR8, carboxyle, alkoxycarbonyle, -C(=O)NR5R6, formyle ou -C(=O)R8 ; et R42 représente hydroxyle, -NR5R6, -OR8, carboxyle, alkoxycarbonyle, -C(=O)NR5R6, formyle ou -C(=O)R8.
  8. Composé selon la revendication 1 qui est sélectionné parmi le groupe constitué de :
    [(R)-2-(N,N-diméthylamino)éthylthio-Sar]3-(N-benzyl)-Val5-cyclosporine A ;
    [(R)-(l-N,N-diméthylamino-cyclobutylméthylthio)-Sar]3-(N-benzyl)-Val5-cyclosporine A ;
    [(R)-2-(N,N-diméthylamino)éthylthio-Sar]3-(4-isopropylbenzyl)-Val5-cyclosporine A ;
    [méthylthio-Sar]3-(N-benzyl)-Val5-cyclosporine A ;
    [n-propylthio-Sar]3-(N-benzyl)-Val5-cyclosporine A ;
    [méthoxy-Sar]3-(N-benzyl)-Val5-cyclosporine A ;
    [méthoxy-Sar]3-(3-trifluorométhylbenzyl)-Val5-cyclosporine A ;
    [méthoxy-Sar]3-(N-allyl)-Val5-cyclosporine A ;
    [méthoxy-Sar]3-(N-but-2-ényl)-Val5-cyclosporine A ;
    [méthoxy-Sar]3-(N-3-méthyl-but-2-ényl)-Val5-cyclosporine A ;
    [méthoxy-Sar]3-N-(trans-4-benzyloxy-but-2-ényl)-Val5-cyclosporine A ;
    [méthylthio-Sar]3-N-[trans-4-(3',4'-diméthoxy)benzyloxy-but-2-ényl]-Val5-cyclosporine A ;
    [méthoxy-Sar]3-N-[trans-4-(3',4'-diméthoxy)benzyloxy-but-2-ényl]-Val5-cyclosporine A ;
    [méthylthio-Sar]3-N-[trans-4-hydroxy-but-2-ényl]-Val5-cyclosporine A ;
    [méthoxy-Sar]3-N-[trans-4-hydroxy-but-2-ényl]-Val5-cyclosporine A ;
    [méthylthio-Sar]3-N-[trans-4-diméthylamino-but-2-ényl]-Val5-cyclosporine A ;
    [méthoxy-Sar]3-N-[trans-4-diméthylamino-but-2-ényl]-Val5-cyclosporine A ;
    [méthoxy-Sar]3-N-[4-hydroxybutyl]-Val5-cyclosporine A ;
    [méthoxy-Sar]3-N-[4-diméthylaminobutyl]-Val5-cyclosporine A ;
    [méthylthio-Sar]3-(N-allyl)-Val5-cyclosporine A ; et
    [éthylthio-Sar]3-(N-benzyl)-Val5-cyclosporine A ;
    ou sel ou solvate pharmaceutiquement acceptable de celui-ci.
  9. Composition comprenant un composé de formule générale (I) tel que défini à la revendication 1, ou un sel ou solvate pharmaceutiquement acceptable de celui-ci, et un excipient, support ou diluant pharmaceutiquement acceptable.
  10. Composé de formule générale (I) tel que défini à la revendication 1, ou sel ou solvate pharmaceutiquement acceptable de celui-ci, destiné à être utilisé en tant que produit pharmaceutique.
  11. Dérivé, sel ou solvate de cyclosporine selon la revendication 1 pour le traitement ou la prévention d'une infection par le virus de l'hépatite C.
  12. Procédé de préparation d'un composé de formule générale (I) tel que défini à la revendication 1, comprenant :
    (a) traitement d'un composé de formule (II) :
    Figure imgb0023
     dans laquelle A, B, X et R1 sont tels que définis à la revendication 1, avec une base et réaction du composé anionique résultant avec un composé de formule R2-Y, dans laquelle R2 est tel que défini à la revendication 1 et Y est un groupe partant ; ou
    (b) traitement d'un composé de formule (III) :
    Figure imgb0024
     dans laquelle A, B et R2 sont tels que définis à la revendication 1, avec une base dans un solvant approprié pour générer une espèce polyanionique et la réaction de l'anion ainsi obtenu avec un électrophile de formule R1X-L, dans laquelle R1 et X sont tels que définis à la revendication 1 et L est un groupe partant ;
    (c) déprotection d'un composé de formule (V) :
    Figure imgb0025
     dans laquelle A, B, X, R1 et R2 sont tels que définis à la revendication 1 et R50 représente un groupe protecteur ;
    suivie en option de la conversion du composé de formule (I) ainsi obtenu en un sel ou solvate pharmaceutiquement acceptable de celui-ci.
  13. Polyanion d'un composé de formule générale (III) :
    Figure imgb0026
     dans laquelle A, B et R2 sont tels que définis à la revendication 1.
  14. Composé de formule générale (V) :
    Figure imgb0027
     dans laquelle A, B, X, R1 et R2 sont tels que définis à la revendication 1 et R50 représente un groupe protecteur.
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US9090671B2 (en) 2015-07-28
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CN102083852A (zh) 2011-06-01
WO2010002428A3 (fr) 2010-03-11
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US20090312300A1 (en) 2009-12-17
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